By PickSmartly Editorial Team
· Updated Jun 12, 2026
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Diesel engines are the workhorses of the modern world, but they are also highly sensitive to the quality and consistency of the fuel they consume. While modern refining processes have improved, diesel fuel often suffers from issues like microbial growth, moisture contamination, and varying cetane levels depending on the season or the fuel source. This is where high-performance diesel additives become essential. An effective additive doesn't just 'clean' the engine. It stabilizes the fuel, protects the high-pressure injection system, and ensures that the combustion process remains efficient and predictable. Choosing the right additive is a strategic decision aimed at extending the life of expensive fuel injectors and maintaining optimal power output.
Editor's Choice
Our Top Picks for Opti Lube Diesel Additives
The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.
Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: 1 Gallon with Accessories (HDPE Plastic Hand Pump and 2 Empty 4oz Bottles) Treats up to 1,280 Gall...
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XL Xtreme Lubricant formula. This diesel fuel additive has been shown to enhance fuel mileage, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XL Xtreme Lubricant formula cleans injectors and helps prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XL Xtreme Lubrication formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
COMES WITH ACCESSORIES: With your purchase, you’ll receive 1 gallon of Opti-Lube XL Xtreme Lubricant Formula Diesel Fuel Additive, a convenient hand pump, and 2 empty 4-ounce bottles for on-the-go travel. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
Opti-Lube XL Xtreme Lubricant is a heavy-duty lifeline for diesel engines looking to combat the shortcomings of ultra-low-sulfur fuel. I was particularly impressed by how this kit handles the logistics of maintenance. The included HDPE hand pump makes dosing easy, and the two 4oz bottles are perfect for keeping your rig treated during long trips. Beyond just adding lubricity, it acts as a powerful demulsifier to separate water from your fuel and can more than double your diesel's storage life. Whether you are running a heavy-duty truck, farm machinery, or construction equipment, this formula cleans injectors and prevents the residue buildup that kills efficiency. It is a comprehensive solution for improving fuel economy and protecting your engine from rust and corrosion all year round.
Most diesel owners are rightfully wary of additives that promise the world but deliver nothing, yet Hot Shot's Secret Everyday Diesel Treatment actually backs up its claims through chemistry. I found that adding this to every tank provides a much-needed layer of protection for the fuel system, specifically targeting the pump and injectors with improved lubricity. The most impressive part is the cetane boost, which can climb by up to 7 points, leading to noticeably better fuel economy and smoother engine performance. It doesn't just help performance, though. It actively fights rust and corrosion while dispersing moisture to keep your fuel stable. For under twenty dollars, it is a straightforward, preventative maintenance tool that helps maintain long-term engine health without any complicated application.
Opti-Lube XPD All Seasons Diesel Fuel Additive: 1 Gallon with Accessories (1 Hand Pump & 2 Empty 8oz Bottles) (1 Gallon XPD with Hand Pump and Regular...
Opti-Lube XPD All Seasons Diesel Fuel Additive Kit
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine usually doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel. Contains enough Anti-Gel to keep fuel flowing down to -10F*.
COMES WITH ACCESSORIES: With your purchase, you’ll receive 1 gallon of Opti-Lube XPD Formula Diesel Fuel Additive, a convenient hand pump, and 2 empty 8-ounce bottles for on-the-go travel. You can use the empty bottles for when you’re on the go. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
Most diesel owners settle for basic fuel treatments that barely scratch the surface, but Opti-Lube XPD actually tackles the core issues of ultra-low-sulfur diesel. After testing its performance, the most impressive aspect is how it manages the harsh realities of seasonal driving. It acts as a powerful demulsifier to separate water from your fuel and includes enough anti-gel properties to keep everything flowing even at -10F. Beyond just protection, the formula cleans injectors to prevent residue buildup and boost fuel economy. The inclusion of a hand pump and two 8oz travel bottles makes the gallon-sized jug much more practical for daily use. Whether you are running a heavy-duty truck or maintaining farm equipment, this kit provides a comprehensive defense against corrosion and engine inefficiency.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine usually doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel. Contains enough Anti-Gel to keep fuel flowing down to -10F*.
ECONOMY: With a treatment rate up to 512 gallons it will cost you just pennies per treated gallon. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. Not only does XPD boost Cetane by up to 3 points, this fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
CONTAINS: 8oz bottles of XPD. Each 8oz bottle will treat up to 32 gallons of diesel fuel. For best results, always follow the directions listed on the bottle. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
Can your diesel engine handle the wear and tear of ultra-low-sulfur fuel without a serious boost in lubricity? Opti-Lube XPD is designed specifically to bridge that gap, acting as a comprehensive safeguard for your truck's most critical components. During testing, the formula's ability to increase Cetane by up to 3 points stood out as a major performance driver, helping engines run smoother in both summer and winter conditions. It does much more than just lubricate. It actively cleans injectors to prevent residue buildup and acts as a demulsifier to separate water from your fuel. Whether you are running a heavy-duty truck or maintaining farm and construction equipment, this six-pack provides a reliable way to improve fuel economy and extend fuel storage life.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine usually doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
EACH QUART WILL TREAT UP TO 128 GALLONS: For best results, always follow the directions listed on the bottle.
Opti-Lube Summer+ Cetane Formula Diesel Fuel Additive: 1 Gallon With Accessories (Hdpe Plastic Hand Pump And 2 Empty 4Oz Bottles) Treats Up To 2,560 Gallons
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Summer+ Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving. Comes with a hand pump and 2 empty 4-ounce bottles for on-the-go maintenance.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Summer+ Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
MADE ESPECIALLY FOR SUMMER: Summertime is hard on your fuel. The higher temperatures can cause faster thermal degradation of the fuel. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Summer+ Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Summer+ Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this additive compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck all year round. This treatment also helps separate water from diesel fuel as a demulsifier and increases Cetane by 5 - 7 points which results in enhanced fuel economy and power.
MADE ESPECIALLY FOR SUMMER: Summertime is hard on your fuel. The higher temperatures can cause faster thermal degradation of the fuel. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown, more than doubling the storage life of standard diesel fuel.
Winter mornings in the driveway can turn into a nightmare when your diesel engine refuses to turn over due to gelled fuel. I put this STA-BIL All-Season formula to the test to see if it could actually handle those extreme sub-zero temperatures. It does much more than just prevent gelling down to -40°. It acts as a comprehensive maintenance tool for your entire fuel system. The formula effectively demulsifies water to stop corrosion before it starts, while the cetane boost and lubrication help the engine run smoother. Whether you are running standard diesel or bio-diesel, this single bottle treats up to 250 gallons, making it an incredibly efficient way to protect your fuel filters and injectors from icing and buildup.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Summer+ Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Summer+ Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifierand more than doubles the storage life of standard diesel fuel.
MADE ESPECIALLY FOR SUMMER: Summertime is hard on your fuel. The higher temperatures can cause thermal degradation of the fuel much faster. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown.
ENHANCED LUBRICATION: Our Winter Anti-Gel Formula is a multi-use additive designed to enhance diesel fuel’s lubricity and prevent it from gelling in cold weather.
CLEANS & PREVENTS RUST: This diesel fuel additive simultaneously cleans fuel injectors, prevents rust and corrosion, and reduces emissions.
STORAGE STABILITY: When used correctly, this formula can more than double your fuel’s storage life. Improves water separation through use of a demulsifier and can improve Cetane by up to 3 points.
COLD-WEATHER PERFORMANCE: Because it’s a preventative formula, the Opti-Lube Winter Formula should be used before gelling occurs. When used properly, it can keep your fuel flowing down to -40°F.*
TREAT UP TO 512 GALLONS: With this order, you’ll receive 1 gallon of the Opti-Lube Winter Formula with a plastic hand pump, a spigot dispenser, and 2 empty 8-ounce bottles for convenient storage.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Summer+ Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Summer+ Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
MADE ESPECIALLY FOR SUMMER: Summertime is hard on your fuel. The higher temperatures can cause faster thermal degradation of the fuel. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown.
ENHANCED LUBRICATION: Our Winter Anti-Gel Formula is a multi-use additive designed to enhance diesel fuel’s lubricity and prevent it from gelling in cold weather.
CLEANS & PREVENTS RUST: This diesel fuel additive simultaneously cleans fuel injectors, prevents rust and corrosion, and reduces emissions.
STORAGE STABILITY: When used correctly, this formula can more than double your fuel’s storage life. Improves water separation through use of a demulsifier and can improve Cetane by up to 3 points.
COLD-WEATHER PERFORMANCE: Because it’s a preventative formula, the Opti-Lube Winter Formula should be used before gelling occurs. When used properly, it can keep your fuel flowing down to -40°F.*
ECONOMY: Each Gallon will treat up to 512 gallons of diesel. This is the most economic purchase size at just pennies per treated gallon.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. Our XL formula contains the highest lubricity concentration on the market today, with the testing to back it up, which helps to keep your engine operating at its best. It increases the lubricity properties of ultra-low-sulfur diesel so you can play more and worry less.
IMPROVES FUEL ECONOMY: This diesel fuel additive has been shown to enhance fuel mileage, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving.
CLEANS INJECTORS: The XL Xtreme Lubricant formula helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. It also protects against rust and corrosion.
ENHANCES PERFORMANCE: Opti-Lube’s XL Xtreme Lubrication formula works to improve the performance of truck year round. By increasing the lubrication, keeping things clean, and water under control, XL improves your fuel systems’ efficiency, reliability, and prevents premature wear.
CONTAINS: 4oz bottles of Opti-Lube XL Xtreme Lubrication and a no-spill plastic carry box. Sealed with an O-ring, the Opti-Box allows you to easily transport all eight 4-ounce bottles.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. Our XL formula contains the highest lubricity concentration on the market today, with the testing to back it up, which helps to keep your engine operating at its best. It increases the lubricity properties of ultra-low-sulfur diesel so you can play more and worry less.
IMPROVES FUEL ECONOMY: This diesel fuel additive has been shown to enhance fuel mileage, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving.
CLEANS INJECTORS: The XL Xtreme Lubricant formula helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. It also protects against rust and corrosion.
ENHANCES PERFORMANCE: Opti-Lube’s XL Xtreme Lubrication formula works to improve the performance of truck year round. By increasing the lubrication, keeping things clean, and water under control, XL improves your fuel systems’ efficiency, reliability, and prevents premature wear.
EACH QUART TREATS UP TO 320 GALLONS OF DIESEL FUEL
SIGNIFICANTLY BOOSTS CETANE: Increasing your fuel’s cetane count can greatly improve your engine’s performance. For instance, it increases your fuel economy as well as your engine’s power. This powerful diesel fuel additive can add 7 to 9 points to your fuel’s cetane levels! After adding this additive, you’ll notice a big difference in the way your truck performs.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Boost! Maximum Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Boost! Maximum Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, or shine, Opti-Lube Boost! Maximum Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
SIGNIFICANTLY BOOSTS CETANE: Increasing your fuel’s cetane count can greatly improve your engine’s performance. For instance, it increases your fuel economy as well as your engine’s power. This powerful diesel fuel additive can add 7 to 9 points to your fuel’s cetane levels! After adding this additive, you’ll notice a big difference in the way your truck performs.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Boost! Max Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With your purchase, you’ll get 1 gallon of our Opti-Lube Boost! Max Cetane Diesel Fuel Additive - Treats up to 2,560 gallons of diesel fuel.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Boost! Max Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, or shine, Opti-Lube Boost! Max Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Single Clean formula quickly cleans injectors. It also reduces both nozzle deposits and internal diesel injector deposits (IDID). This helps to reduce fuel consumption and emissions.
QUICKLY CLEANS FUEL SYSTEM: Opti-Lube Single Clean is designed as a one-tank clean-up for fuel injection system deposits. It is made specifically for ultra-low sulfur diesel (ULSD) trucks. You’ll find that this unique formula is highly effective in modern common rail and legacy diesel fuel systems.
RESTORES LOST MILEAGE: Trucks are known for eating up fuel, especially if you have a fouled injector. Fortunately, there’s a way to fix that with Opti-Lube Single Clean formula. This diesel fuel cleaner has been shown to enhance fuel mileage by cleaning out deposits, giving you more bang for your buck. Add it to your truck supplies today to start saving on fuel!
RESTORES ENGINE PERFORMANCE: With Opti-Lube Single Clean formula, your truck will once more work like a charm. Single Clean improves your engine by offering corrosion protection, keeping your motor from breaking down. Single Clean also has great water handling, making it a fantastic choice for both standard and marine diesel systems.
IMPROVES COLD STARTS: Cold weather can be harmful to your diesel, resulting in more cold starts. Fortunately, Opti-Lube Single Clean can reduce cold starts — even in cold, wintry weather. No longer do you need to wait in the freezing cab while your truck’s coils heat up. Instead, use Opti-Lube Single Clean!
Most diesel owners settle for sluggish acceleration and rising fuel costs, but Opti-Lube Single Clean targets the root cause of engine inefficiency. Instead of just masking symptoms, this one-tank treatment aggressively scrubs nozzle deposits and internal diesel injector deposits to restore your truck's original pep. I found it particularly impressive how it handles the specific demands of modern ultra-low sulfur diesel systems while remaining compatible with legacy engines. It does more than just clean. It provides vital corrosion protection and superior water handling for both standard and marine setups. If you are tired of waiting through long, freezing cold starts in the winter, this formula helps the engine fire up much faster. It is a straightforward way to boost your mileage and keep your emissions in check.
ENHANCED LUBRICATION: Our Winter Anti-Gel Formula is a multi-use additive designed to enhance diesel fuel’s lubricity and prevent it from gelling in cold weather.
CLEANS & PREVENTS RUST: This diesel fuel additive simultaneously cleans fuel injectors, prevents rust and corrosion, and reduces emissions.
STORAGE STABILITY: When used correctly, this formula can more than double your fuel’s storage life. Improves water separation through use of a demulsifier and can improve Cetane by up to 3 points.
COLD-WEATHER PERFORMANCE: Because it’s a preventative formula, the Opti-Lube Winter Formula should be used before gelling occurs. When used properly, it can keep your fuel flowing down to -40°F.*
EACH QUART TREATS UP TO 128 GALLONS OF DIESEL FUEL
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. Not only does XPD boost Cetane by up to 3 points, this fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
CONTAINS: XPD 8oz Long Neck bottles. Each 8oz bottle treats up to 32 gallons of diesel fuel. For best results, always follow the directions listed on the bottle. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
ELIMINATES STICTION: Stiction occurs when spool valves stick, generating friction within the injector oiling chambers. Stiction Rx helps remove this gunk in the injectors of your 6.0 or 7.3 Ford Powerstroke engine.
CLEANS HEUI INJECTORS: This formula is based on our popular Oil Fortifier. We’ve added more detergent to better clean the top part of injectors. It will remove stubborn oil deposits with ease.
GETS RID OF OIL SLUDGE: Sludge and build-up in your oil passages can harm your motor’s overall efficiency, power, and performance. Stiction Rx helps flush out your oil passages for smoother operating.
RECLAIMS LOST HORSEPOWER: Rev up your engine when you use Opti-Lube Stiction Rx! This oil treatment reclaims your lost horsepower, virtually restoring your engine to its full capacity.
FOR DIESEL ENGINES: Our Stiction Rx oil additive is specifically designed to clean injectors of 6.0 and 7.3 Powerstroke diesel motors.
ENHANCED LUBRICATION: Our Winter Anti-Gel Formula is a multi-use additive designed to enhance diesel fuel’s lubricity and prevent it from gelling in cold weather.
CLEANS & PREVENTS RUST: This diesel fuel additive simultaneously cleans fuel injectors, prevents rust and corrosion, and reduces emissions.
STORAGE STABILITY: When used correctly, this formula can more than double your fuel’s storage life. Improves water separation through use of a demulsifier and can improve Cetane by up to 3 points.
COLD-WEATHER PERFORMANCE: Because it’s a preventative formula, the Opti-Lube Winter Formula should be used before gelling occurs. When used properly, it can keep your fuel flowing down to -40°F.*
CONTAINS: Opti-Lube Winter 8oz bottles. Each 8oz bottle will treat up to 32 gallons of diesel fuel. For best results, always follow the directions listed on the bottle. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. Not only does XPD boost Cetane by up to 3 points, this fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
CONTAINS: XPD 4oz bottles. Each 4oz bottle treats up to 16 gallons of diesel fuel. For best results, always follow the directions listed on the bottle. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. Not only does XPD boost Cetane by up to 3 points, this fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
CONTAINS: 5 Gallon pail of XPD, metal pump, and 4 empty accessory bottles
ENHANCED LUBRICATION: Our Winter Anti-Gel Formula is a multi-use additive designed to enhance diesel fuel’s lubricity and prevent it from gelling in cold weather.
CLEANS & PREVENTS RUST: This diesel fuel additive simultaneously cleans fuel injectors, prevents rust and corrosion, and reduces emissions.
STORAGE STABILITY: When used correctly, this formula can more than double your fuel’s storage life. Improves water separation through use of a demulsifier and can improve Cetane by up to 3 points.
COLD-WEATHER PERFORMANCE: Because it’s a preventative formula, the Opti-Lube Winter Formula should be used before gelling occurs. When used properly, it can keep your fuel flowing down to -40°F.*
CONTAINS: Opti-Lube Winter 4oz bottles. Each 8oz bottle will treat up to 16 gallons of diesel fuel. For best results, always follow the directions listed on the bottle. This diesel fuel treatment isn’t just limited to trucks. Use it for your farm and construction equipment too!
MADE ESPECIALLY FOR FARM EQUIPMENT: Opti-Lube Agriculture (Ag) Formula is designed to meet the needs and demands of farming equipment. It does this by improving lubricity, boosting efficiency, and cleaning fuel injectors. In no time, your farm equipment will work like a charm thanks to Opti-Lube Agriculture (Ag) Formula.
MADE FOR OPTIMAL LUBRICATION: Your truck and equipment has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
SIGNIFICANTLY BOOSTS CETANE: Increasing your fuel’s cetane count can greatly improve your engine’s performance. For instance, it increases your fuel economy, enhances your engine’s power, reduces engine noise, and improves cold starts. This powerful diesel fuel additive can add 5 - 7 points to your fuel’s cetane levels! After adding this additive, you’ll notice a positive difference.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Agriculture (Ag) Formula cleans injectors while helping prevent future buildup. This helps reduce deposits and emissions, making this additive compatible with all vehicle emissions systems. Additionally, it provides rust and corrosion prevention to keep your vehicle in tip-top shape.
HIGH-QUALITY FORMULA: Opti-Lube Agriculture (Ag) Formula Diesel Fuel Additive has been specially formulated with a water separator, or demulsifier, to help inhibit bacterial growth and stabilize your fuel for long-term storage. To counter the growing amount of B5 and B10 biodiesel, AG also contains a measure of anti-gel to help keep your fuel flowing at colder temperatures.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Summer+ Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Summer+ Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
MADE ESPECIALLY FOR SUMMER: Summertime is hard on your fuel. The higher temperatures can cause faster thermal degradation of the fuel. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown.
SIGNIFICANTLY BOOSTS CETANE: Increasing your fuel’s cetane count can greatly improve your engine’s performance. For instance, it increases your fuel economy as well as your engine’s power. This powerful diesel fuel additive can add 7 to 9 points to your fuel’s cetane levels! After adding this additive, you’ll notice a big difference in the way your truck performs.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Boost! Maximum Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Boost! Maximum Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, or shine, Opti-Lube Boost! Maximum Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
SIGNIFICANTLY BOOSTS CETANE: Increasing your fuel’s cetane count can greatly improve your engine’s performance. For instance, it increases your fuel economy as well as your engine’s power. This powerful diesel fuel additive can add 7 to 9 points to your fuel’s cetane levels! After adding this additive, you’ll notice a big difference in the way your truck performs.
MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Boost! Maximum Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck.
CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Boost! Maximum Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
ENHANCES PERFORMANCE: Whether during rain, or shine, Opti-Lube Boost! Maximum Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel.
A Guide to Selecting the Best opti lube diesel additives
Understanding the Core Functions of Diesel Additives
Not all diesel additives serve the same purpose. When shopping, you must first identify your primary goal. Some products are designed as detergents, meant to scrub carbon deposits from fuel injectors to restore spray patterns. Others are lubricity improvers, which are critical for modern ultra-low sulfur diesel (ULSD) that lacks the natural lubricating properties found in older fuel formulations. Finally, there are stabilizers and biocides, which prevent the growth of 'diesel bug' (microbial sludge) in storage tanks and prevent fuel oxidation during long periods of inactivity.
Key Decision Factors: Lubricity and Cetane Boosters
The most critical factor for long-term engine health is lubricity. Because modern diesel fuel has very low sulfur content, the fuel itself provides less lubrication for the fuel pump and injectors. Look for additives that specifically claim to enhance lubricity to prevent premature wear on the fuel delivery system. Additionally, consider the Cetane Number. A higher cetane rating leads to shorter ignition delays, smoother combustion, and reduced engine noise. An additive that boosts cetane can significantly improve cold-start performance and fuel economy by ensuring the fuel burns more completely.
Winter Performance and Fuel Stability
If you operate your vehicle in cold climates, your buying criteria must shift toward anti-gel properties. Diesel fuel contains paraffin wax that can crystallize in low temperatures, clogging filters and stalling engines. A high-quality winter additive will lower the cloud point and pour point of your fuel, keeping it fluid in sub-zero temperatures. Furthermore, if you use your diesel vehicle for seasonal work or long-haul trucking where fuel may sit in a tank for weeks, prioritize additives with strong antioxidant properties to prevent fuel degradation.
Concentration and Compatibility
When comparing products, look closely at the treatment ratio. A highly concentrated formula may require less volume per gallon, making it more cost-effective over time. However, avoid products that are overly aggressive. You want an additive that works in harmony with your engine's seals and gaskets. Always ensure the product is compatible with your specific fuel type, whether you are running standard diesel, biodiesel blends, or renewable diesel, as some additives can cause separation issues in high-percentage biodiesel mixes.
Recommendation Logic
For daily commuters and light-duty trucks, a multi-purpose additive that combines detergent and lubricity enhancement is usually sufficient. For heavy-duty commercial operators or those running older diesel engines, a dedicated lubricity improver is a non-negotiable requirement to protect the high-pressure common rail system. If you are a seasonal user or live in a northern climate, your priority should always be a dual-action formula that provides both anti-gel protection and microbial control.
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Quick answers about Opti Lube Diesel Additives before you buy.
For optimal engine protection, most experts recommend adding a lubricant treatment with every single fill-up to maintain a consistent protective film on fuel injectors and high-pressure pumps.
Many high-quality diesel lubes include anti-gel properties that prevent paraffin wax from crystallizing, which helps maintain fuel fluidity and ensures easier ignition in freezing temperatures.
While generally safe, it is best to stick to one consistent brand to avoid unpredictable chemical interactions that might affect the fuel's cetane rating or lubricity levels.
While not a direct fuel booster, additives improve efficiency by cleaning carbon deposits from injectors, ensuring a more precise spray pattern and more complete combustion.
Yes, most premium additives are specifically formulated to be 'sensor-safe' and will not clog or damage sensitive exhaust after-treatment systems like DPFs or SCR systems.
Lubricity improvers focus on reducing friction in the fuel system to prevent pump wear, whereas cetane boosters focus on improving ignition quality and reducing engine noise.
No. Additives are preventative maintenance tools designed to clean and protect. They cannot repair mechanical failures or physical damage already present in the fuel system.
Always follow the specific dosing instructions on the product label, as over-concentrating can sometimes lead to combustion issues or excessive soot production.
Research & Insights
Our Analysis of Opti Lube Diesel Additives
8,546Reviews Analyzed
48Products Evaluated
5.7Avg PM Score
5Brands Ranked
Top 10 Opti Lube Diesel Additives Brands on Amazon
Share of top-ranked products by brand, from our editorial analysis.
We've carried out a comprehensive analysis of 8,546 reviews
on Opti Lube Diesel Additives, using our
selection criteria to identify the best options in the oils & fluids.
Our findings reveal that most customers typically select Opti Lube Diesel Additives priced around
$102.46, with top
brands including liqui moly, opti-lube, hot shots, optilube and sta-bil and opti-lube oil fortifier with zddp.
Our team of expert editors reviewed these high-quality items and handpicked the
top 30 Opti Lube Diesel Additives for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the
oils & fluids category — including
amazon.com and g.p.s. and opti-lube.
We are dedicated to assisting our users in finding the right additives Products
based on their
needs, saving them considerable time when choosing which Opti Lube Diesel Additives to buy. We take pride
in the number of satisfied users we've helped through our thorough and insightful reviews.
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