Best Hot Shots Secret Diesel Additives in 2026

IMPROVES TOWING POWER: Helps breakdown and remove performance robbing deposits from the entire fuel system

IMPROVES ACCELERATION: Helps boost catane up to 7 points - improving efficency and throttle response

CLEANS AND LUBRICATES: Treats turbos, fuel injectors, pistons, and combustion chamber components

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.

Anti-Gelling Formula - Reduces the formation of wax crystals in diesel fuel during cold weather, to keep fuel flowing smoothly and prevent it from clogging the system or fuel filter

Improves Cold Starts - Significantly enhances cold-weather performance and disperses moisture to prevent fuel line freeze-ups, even in temperatures as low as -40 degrees Fahrenheit

Keeps Fuel System Healthy - Acts as a fuel injector cleaner and lubricity additive to reduce engine wear and keep your vehicle healthy, efficient, and performing at peak capacity

Safe to use in all diesel engines including agricultural and marine

Safe to use in all diesel fuel, including ultra low sulfur diesel and bio-diesel

Keeps diesel fuel fresh, for quick easy starts

Prevents Fuel From Gelling - Howes Diesel Treat is the nation’s most trusted anti-gel. Its special formula has been tested and proven time and again to prevent gelling in even the coldest weather. Owners of all types of diesel vehicles and equipment rely on the Howes family’s guaranteed product to keep them going all winter long.

Adds Lubricity - Diesel Treat helps protect against today’s Ultra Low Sulfur Diesel (ULSD) fuels by providing added lubricity to injectors, pumps, and upper cylinders. In doing so, it extends the life and increases the performance of diesel engines of all types.

Prevents Deposits - More than just an anti-gel, Diesel Treat also contains a specialized detergent package to help prevent fuel injector deposits. Carbon deposits on diesel injector systems can cause loss of engine power and other issues. Preventing these helps to improve performance and fuel economy, saving you money.

Restores/Increase Horsepower – detergents clean deposits in the injection system

Reduces Fuel Consumption–tests show an average of 4% improvement in MPG and gains up to 9.6%

Cetane Improver – improves combustion resulting in better engine starting, running & reduced noise

Adds Protection – Increases fuel lubricity by up to 56% for an added layer of protection that keeps fuel pumps and injectors from unnecessary damage or failure

No Harmful Ingredients – LX4 is formulated without harmful solvents or alcohol making it a safe and effective fuel treatment for all systems and engines

Extends Fuel System Life – Protects any fuel system from harsh ethanol or diesel fuels and maintains a smoothly working engine and fuel system, keeping it healthy for even longer

Includes AR6500 Diesel Treatment (40 oz)

Includes AR6400-D Diesel Fuel System Cleaner

Restore key fuel system components - injectors, turbo & dpf

Diesel hi-test, cetane boost

Flash point: 63.0 degrees_celsius

Regular use keeps the fuel system in perfect working order.

Adds Up To 2.5x More Lubricity - With more lubricity than any other Howes product and many on the market, Diesel Defender is the ultimate choice for heavy duty vehicles. It provides protection by significantly reducing wear scars, with independent lab* results confirming Defender treated fuel outperformed the US (520mm) and more stringent European (460mm) standards. *via the wear scar test for ASTM D975 High Frequency Reciprocating Rig (HFRR)

Cleans Fuel Injectors - Uses superior IDX4 Detergent to attack and destroy even the toughest carbon deposits. When used as directed, Diesel Defender is designed to clean the entire fuel system within three treatments and prevent future deposits from forming. The removal of these deposits keeps the diesel fuel system performing optimally and increases power.

Increased Fuel Economy Guaranteed - By safely removing water, Diesel Defender leaves only pure fuel to burn. Your clean injectors then allow for a steady spray pattern, so none of that fuel is wasted. When used regularly, Diesel Defender guarantees a minimum 5% increase in fuel economy.

Prevents fuel gelling

Protects against fuel-filter icing

Boosts cetane for faster cold starts

Adds Protection – Increases fuel lubricity by up to 56% for an added layer of protection that keeps fuel pumps and injectors from unnecessary damage or failure

No Harmful Ingredients – LX4 is formulated without harmful solvents or alcohol making it a safe and effective fuel treatment for all systems and engines

Extends Fuel System Life – Protects any fuel system from harsh ethanol or diesel fuels and maintains a smoothly working engine and fuel system, keeping it healthy for even longer

Contains Real water dispersants to effectively remove moisture from the entire fuel system

Lowers the cold filter plugging point of ULSD and Biofuels

Prevents fuel thickening and gelling

CRC INDUSTRIES: A market leader that offers impeccably designed chemical solutions to maintain, protect and repair different marine, heavy-duty motor vehicles, industrial-grade engines, household tools, and electrical equipment.

DIESEL INJECTOR CLEANER PLUS: This diesel fuel treatment is an effective emissions reducing solution. It has been rated "SUPERIOR" in the Cummins L-10 Test for injector cleaning.

SUPERIOR PERFORMANCE: Diesel Fuel Therapy provides top-tier performance to clean injectors and prevents corrosion. It also adds lubricity to low sulfur fuel and increases MPG.

Keep Your Diesel Engine Clean - Diesel Doctor diesel fuel additive is a fuel system cleaner that cleans and lubricates your entire fuel system to increase fuel mileage and help your engine perform better under all conditions

The Ultimate Fuel Tank Cleaner - Diesel Doctor reduces smoking, removes harmful water from fuel, prevents growth throughout your engine, and boosts your Cetane by up to four numbers

Up to 3 Years of Protection - Our long-lasting formula acts as a fuel stabilizer for up to 36 months, keeping your fuel pump, carburetor, and fuel injector cleaner even after years of fuel sitting in your garage

Withstands extreme pressures and temperatures encountered in high-pressure common rail fuel injection systems (HPCR).

Optimizes performance and fuel economy.

Improves cetane number by up to 5 points.

40.6 oz bottle treats 400 gallons - Use at every fill-up

Formulated to address issues with modern diesel fuels

Incorporates Archoil's proven combustion modifier technology and a strong cetane boost to increase power and response