10 Best Diesel Fuel Additive of December 2025

• BOOSTS cetane up to 7 points
• INCREASES power, performance, and fuel economy
• STABILIZE fuel & disperse moisture
• INCREASES lubricity & prevent rust and corrosion
• 1-2 OZ per 25 GAL of diesel fuel
• Treats 400 Gallons
• Concentrated daily fuel booster
• Fit type: Universal Fit
• Flash point: 142.0 degrees_celsius

Hot Shot's Secret

• 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!

Opti-Lube

• Cleans dirty injectors and prevents injector sticking in both High Pressure Common Rail (HPCR) and older systems, effective in all diesel fuels, including ULSD, biodiesel and biodiesel blends
• Removes both internal and external deposits on fuel injectors
• Boosts cetane up to 6 numbers – engines run smoother with less power lag and faster cold starts
• Boosts power – reduces need for downshifting; Restores lost power and fuel economy
• Contains Slick diesel Lubricator to protect fuel pumps and injectors from increased wear caused by poor quality Ultra Low Sulfur Diesel (ULSD) fuel
• Fit Type: Universal Fit

Power Service

• Boost cetane up to 7 points
• Improve power, performance, and fuel economy
• Maintains clean injectors & stabilize fuel
• Clean engine parts & add lubricity
• Fit type: Universal Fit

Hot Shot's Secret

• 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
• Reduces Wear: Lubricity improvers restore lubricity to ultra low sulfur diesel fuels
• Reduces Emissions reduces Smoke and Particulates

Stanadyne

• 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
• Reduces Wear – lubricity improvers restore lubricity to ultra low sulfur diesel fuels
• Reduces Emissions – reduces Smoke and Particulates

Stanadyne

• Includes (2) x AR6500 Diesel Treatment - Treat up to 660 gallons
• 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
• Cleans, lubricates and protects your fuel system (including HPCR systems)

Archoil

• 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
• Reduces Wear – lubricity improvers restore lubricity to ultra low sulfur diesel fuels
• Reduces Emissions – reduces Smoke and Particulates

Stanadyne

• 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
• Reduces Wear: Lubricity improvers restore lubricity to ultra low sulfur diesel fuels
• Reduces Emissions reduces Smoke and Particulates

Stanadyne

• RESULTS. Kills and prevents bacteria and fungi in fuel. Prevents corrosion of fuel tanks and metal components caused by the acidic by-products of microbial growth. Lubricates injectors and fuel pumps.
• DUAL PHASE. Soluble in both water and fuel phases for a more effective kill.
• ELIMINATES. Excessive sludge accumulation, clogged fuel filters and expensive fuel polishing that can shut down engines.
• TREATMENT. 1 fluid ounce treats 80 gallons. Extremely cost efficient! 1 ounce treats 40 gallons for shock dosage.
• RECOMMENDED. By major diesel engine OEM operation manuals worldwide. For use in "All the Fuel, All the Time” – Military Spec MIL-S-53021A.

Hammonds