Best Winter 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

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.

Hot Shot's Secret anti-gel diesel additive provides winter protection against freeze-ups, dramatically improves cold-temperature performance and contains a powerful cetane booster for a maximum improvement in performance, power and cold start speed.

This effective anti-gel additive significantly enhances cold-temperature performance and helps prevent the wax in fuel from clogging lines.

Hot Shot's Secret Diesel Winter Anti-Gel is recommended for use in all diesel engines. The anti-gel formula provides lubricity, stability, winter operability, detergency and increased cetane number to standard diesel fuels.

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

Made in the U.S.A. Restores/Increase Horsepower.

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

Prevents fuel gelling

Protects against fuel-filter icing

Boosts cetane for faster cold starts

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.

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

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

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

Includes AR6500 Diesel Treatment (40 oz)

Includes AR6400-D Diesel Fuel System Cleaner

Restore key fuel system components - injectors, turbo & dpf

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

Concentrated - Treats up to 400 Gallons for Unparalleled Cold Start Improvement.

Unmatched Winter Performance to -25°F - Helps prevent Diesel Fuel Gelling.

Provides a maximum 12 point cetane boost to restore or increase lost performance and fuel economy.

Anti-gel: Prevents diesel fuel from gelling and plugging the fuel filter

Promotes complete combustion for improved performance and boosts cetane

Protects fuel pump and injectors from wear and failure

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

Prevents Fuel Gelling and Wax Crystal Formation

Contains Cetane and Restores Fuel Economy

Helps Improve Lubricity and Prevents Corrosion

TRIAX unique formula, complete performance, all-in-one, proprietary, diesel fuel treatment, and fuel booster; custom-built for year-round protection

High fuel lubricity boost; outstanding HFRR rating of 263 at the recommended treat rate; greatly improved fuel lubricity; significantly less wear; eliminates fuel pump and injector issues; smoother running engine

Compatible with all diesel engines including Powerstroke, Turbo Diesel Trucks,European TDI, and TDCI Turbo Diesel High-Performance Engines

✔ STABILIZES FUEL : Fuel Ox Marine Winter Shock Stabilizes Fuel For Up To Two Years In Both Gas & Diesel

✔ ALLEVIATES ETHANOL ISSUES: Fuel Ox Marine Winter Shock Prevents The Harmful Effects Of Ethanol Including Corrosion & Phase Separation

✔ REMOVES WATER : Fuel Ox Marine Winter Shock Removes Water Safely Without Burning It Through Engine

Complete Coverage: From engine lubrication to cleaning and maintenance prevention, Diesel All-in-One Fuel Conditioner covers all Diesel engine additive needs

Cleans for High Function: Stabilizes diesel, cleans fuel system, pumps, injectors, sludge deposits, disperses water, reduces smoking and boosts cetane levels

Prevent Engine Damage: Utilizes anti-gel for winter protection, takes preventative measures against corrosion, extends the life of your engine

Cetane booster improves combustion for better performance

Helps prevent fuel filter plugging

Enhances power while decreasing emissions

ALL-IN-ONE COMBINATION: Injector cleaner, lubricity additive, cetane improver, water eliminator, fuel stabilizer, and wax modifiers in one powerful formula

YEAR 'ROUND FORMULA: Designed for use year 'round anywhere, in any climate

PACKED WITH BENEFITS: Keeps injectors working at peak performance, water issues, and corrosion

Product 1: Clean Out The Tank, Lines And Injectors

Product 1: Remove Free Water From The System

Product 1: Stabilize Fuel, Boost Cetane

Facilitates start ups even in the coldest temperatures

Prevents freezing of diesel fuel and crystallization

Prevents scale, deposits and rust caused by Biodiesel