10 Best Diesel Additive of December 2025
List of Top Rated Diesel Additive from thousands of customer reviews & feedback.
Updated On Dec 2025
1,627 Reviews Studied
1
Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS) Read Review
- 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
2
Power Service Diesel Kleen + Cetane Boost - 6/80oz. Bottles Read Review
- Cleans injectors, prevents injector sticking in engines, including High Pressure Common Rail (HPCR) systems
- Boosts cetane up to 6 numbers — engines run smoother with less power lag and faster cold starts
- Improves fuel economy up to 8% — fuel savings exceed cost of additive.
- Stabilizes stored fuel.
- Contains Slickdiesel Lubricator for maximum fuel lubrication, protects pumps and injectors.
3
Hot Shot's Secret - DDD Diesel Duo, 2qt STICTION Eliminator and 2qt Diesel Extreme Read Review
- Stiction Eliminator for engine oil reduces wear while restoring compression and power
- Stiction Eliminator protects rings, injectors and turbo - anything that the oil touches
- Diesel Extreme cleans injector tips and disperses moisture
- Diesel Extreme fuel system cleaner restores throttle and boosts cetane up 7 points
4
Stanadyne Performance Formula Diesel Fuel Additive - Pack of 4 Pint Bottles - Part # 38565 Read Review
- 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
5
Power Service 3016-09 Diesel Kleen+Cetane Boost, 16 Fluid Ounces, 9 Pack Read Review
- 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
6
Hot Shot's Secret - HSSEDT01G Everyday Diesel Treatment - EDT 1 Gallon - Treats Up to 3,200 Gallons Read Review
- 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
7
Performance Formula One Shot 8oz, Case of 24 Bottles Treats 30 gallons Diesel Fuel per Bottle Read Review
- 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
8
Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566 Read Review
- 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
9
Stanadyne Performance Formula Diesel Fuel Additive - 16 Oz. Case of 12 Read Review
- 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
10
Stanadyne Diesel Performance Formula 38566, 64 Ounce Read Review
- 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