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Best fuel additives - April 2026

Last Updated - April 4, 2026

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Archoil

Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles

Archoil

$79.90

More Details
Main highlights
- SUPPORTS DPF & REDUCES REGENS: Targets deposit formation to help keep the DPF clean and reduce regeneration frequency – restores performance, fuel economy, and extends DPF lifespan
- KEEPS TURBO CLEAN: Helps reduce fuel soot and deposit formation that impacts turbo response, restoring boost and smoother acceleration
- IMPROVES LUBRICITY (ASTM D6079): Tested to improve lubricity by 43% to help protect fuel system components, including wear-sensitive parts like the CP4 pump
- FOR ALL DIESEL ENGINES: Suitable for use in all diesel vehicles and equipment - light-duty, heavy-duty, pickup, SUV, van, RV, etc. (including modern HPCR systems)
- EASY USE AT EVERY FILL-UP (2-Pack Value): Add directly to the fuel tank at each fill-up. Includes two 40 oz bottles – each treats up to 400 gallons (800 gallons total)
- CLEANS INJECTORS: AR6500's detergent package removes injector deposits and restores spray patterns for improved atomization, supporting better performance and fuel economy
- BOOSTS CETANE UP TO +8: Raises cetane up to 8 points for faster ignition, smoother combustion, and improved drivability; many engines run best around 48–50 while pump diesel is often 40–45
$79.90
2
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Archoil

Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles

Archoil

$75.90

$79.90
(5% Off)

More Details
Main highlights
- SUPPORTS DPF & REDUCES REGENS: Targets deposit formation to help keep the DPF clean and reduce regeneration frequency – restores performance, fuel economy, and extends DPF lifespan
- KEEPS TURBO CLEAN: Helps reduce fuel soot and deposit formation that impacts turbo response, restoring boost and smoother acceleration
- IMPROVES LUBRICITY (ASTM D6079): Tested to improve lubricity by 43% to help protect fuel system components, including wear-sensitive parts like the CP4 pump
- FOR ALL DIESEL ENGINES: Suitable for use in all diesel vehicles and equipment - light-duty, heavy-duty, pickup, SUV, van, RV, etc. (including modern HPCR systems)
- EASY USE AT EVERY FILL-UP (2-Pack Value): Add directly to the fuel tank at each fill-up. Includes two 40 oz bottles – each treats up to 400 gallons (800 gallons total)
- CLEANS INJECTORS: AR6500's detergent package removes injector deposits and restores spray patterns for improved atomization, supporting better performance and fuel economy
- BOOSTS CETANE UP TO +8: Raises cetane up to 8 points for faster ignition, smoother combustion, and improved drivability; many engines run best around 48–50 while pump diesel is often 40–45
$75.90
$79.90 (5% Off)
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

STA-BIL

STA-BIL Storage Fuel Stabilizer Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive That Protects System, Gas Stabilizer for Storage, 16 oz.

STA-BIL

$10.99

More Details
Main highlights
- Great Product
$10.99
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

STA-BIL

STA-BIL Storage Fuel Stabilizer Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive That Protects System, Gas Stabilizer for Storage, 16 oz.

STA-BIL

$10.99

More Details
Main highlights
- Great Product
$10.99
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Lucas Oil

Lucas Oil 10020 Upper Cylinder Lube/Fuel Treatment - 5.25 fl oz.

Lucas Oil

$5.79

More Details
Main highlights
- The world’s #1 fuel additive for both gasoline and diesel engines
- Safely replaces the need for lead in older engines without causing harmful effects
- Prevents rust and corrosion, prolonging the life of engine and fuel system components
- Neutralizes sulfur and other harmful contaminants present in the fuel system
- Increases the life of pumps and injectors
- Increases power and acceleration by improving fuel flow and reducing deposit buildup
- Improves fuel economy by burning excess exhaust emissions
- Complies with federal low sulfur content requirements for diesel motor vehicles and non-road, locomotive and marine diesel equipment engines
- Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
- A great tune-up in a bottle – treats gasoline, diesel fuel and increases MPG
$5.79

Best fuel additives - April 2026

Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles

Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles

STA-BIL Storage Fuel Stabilizer Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive That Protects System, Gas Stabilizer for Storage, 16 oz.

STA-BIL Storage Fuel Stabilizer Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive That Protects System, Gas Stabilizer for Storage, 16 oz.

Lucas Oil 10020 Upper Cylinder Lube/Fuel Treatment - 5.25 fl oz.

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