Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
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10 Best fuel system additives of 2026
Save up to 20% off
Best Choice1
Red Line9.6Exceptional
Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)
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Package Quantity:2 Pack
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Applications:Cleans injectors, carburetors, valve and combustion chamber deposits
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Efficiency:Cleans nearly 100% efficiency in one treatment
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Product Type:Complete Fuel System Cleaner
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Bottle Size:15 Ounce
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Value for Money2
Red Line9.5Excellent
Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce- Fuel Injector Cleaner and Carburetor Cleaner for Corrosion Prevention and Injector, Valve, and Combustion Chamber Deposit Removal
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Package Quantity:N/A
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Applications:N/A
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Efficiency:Cleans nearly 100% in one treatment
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Product Type:N/A
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Bottle Size:15 Ounce
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3
Lucas Oil9.2Excellent
Lucas Oil 10003 Fuel Treatment - 1 Quart
20% Off-
Function:Fuel system cleaning and lubrication
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Primary Benefit:Increases life of pumps and injectors
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Compliance:Federal low sulfur content requirements
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Fuel Type Compatibility:Gasoline and diesel engines
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Volume:1 Quart
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4
Lucas Oil9.0Excellent
Lucas Oil 10013 Fuel Treatment - 1 Gallon
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Function:Cleans and lubricates fuel system
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Compatibility:Gasoline and diesel engines
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Compliance:Complies with federal low sulfur content requirements
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Application:Fuel Treatment
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Volume:1 Gallon
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5
STA-BIL8.9Very Good
STA-BIL Storage Fuel Stabilizer, 16 oz
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6
STA-BIL8.8Very Good
STA-BIL Storage Fuel Stabilizer, 32 oz
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7
Hot Shot's Secret8.7Very Good
Hot Shot's Secret Everyday Diesel Treatment EDT, 16 oz
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8
STAR BRITE8.4Good
STAR BRITE Star Tron Enzyme Fuel Treatment - Concentrated Formula 32 Fl. Oz. – Treats up to 512 Gallons - Fuel Stabilizer & Treatment, Gasoline Stabilizer, Star Tron Marine Enzyme Fuel Treatment
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9
Chevron8.2Good
Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz. (Pack of 6)
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10
Archoil7.9Good
Archoil Diesel Fuel System Kit - AR6400-D (12 oz) + AR6500 (40 oz) - Complete Restoration For All Diesel Engines, Injector Cleaner, Lubricity Improver, DPF & Turbo Deposit Control, Cetane Booster
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