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Fuel System Cleaners

49 fuel system cleaners from Gumout, Red Line, STP and more.

Recommended Fuel System Cleaners

Chevron

6-Pack, 12 oz

+Six 12 oz bottles in one pack
+Formulated for high-mileage vehicles
+Cleans fuel system components as named
−Each bottle holds only 12 oz
No price recorded yet.
Doc's Auto Parts

12 oz

+High-strength PEA formula in a 12 oz bottle
+Labeled as a complete fuel system cleaner
+Uses PEA chemistry for fuel system cleaning
−Single 12 oz bottle per package
No price recorded yet.
Lucas Oil

5.25 oz

+5.25 oz bottle for fuel injector cleaning
+Targets fuel injectors specifically
+Compact size fits easily in storage
−Small 5.25 oz volume per bottle
No price recorded yet.
Gumout

16 oz

+16 oz bottle for multi-system treatment
+Combines fuel stabilizer, injector cleaner and gas treatment
+Labeled as a full fuel system cleaner
−Single bottle per package
No price recorded yet.
Red Line

4 oz

+Holds 4 oz of fuel system cleaner
+Made for powersports fuel systems
+Cleans the complete fuel system
−Small 4 oz size treats a limited amount of fuel
No price recorded yet.
Red Line

2-Pack, 4 oz

+Two 4 oz bottles come in one pack
+Made for powersports fuel systems
+Cleans the complete fuel system
−Each bottle holds only 4 oz per treatment
No price recorded yet.
Red Line

1-Pack, 4 oz

+Holds 4 oz of fuel system cleaner
+Cleans and prevents corrosion in fuel systems
+Cleans fuel injectors
−Small 4 oz size treats a limited amount of fuel
No price recorded yet.
Rislone

32 oz

+Includes upper cylinder lubricant in the formula
+Large 32 oz bottle for multiple treatments
+Designed as a fuel injector cleaner
−Larger bottle takes more storage space
No price recorded yet.
Hot Shot's Secret

16 oz

+Treats up to 40 gallons of fuel
+16 oz bottle for diesel fuel systems
+Cleans fuel systems and injectors
−Formulated for diesel, not gasoline engines
No price recorded yet.
Sea Foam

4-Pack, 16 oz

+Four-pack gives four 16 oz cans
+Works as a motor treatment for fuel systems
+Each can holds 16 oz
−Four cans take more storage space
No price recorded yet.
STA-BIL

10 oz

+Designed as an ethanol fuel treatment
+Acts as a fuel stabilizer
+Comes in a 10 oz bottle
−Small 10 oz size treats limited fuel
No price recorded yet.
STA-BIL

8 oz

+Treats up to 20 gallons of fuel
+Removes water from fuel
+Cleans fuel systems and restores performance
−Designed for marine engines
No price recorded yet.
STP
+Cleans fuel injectors and intake valves
+Fixes fuel intake and exhaust system issues
+12 fl oz capacity treats a single tank
−Small 12 fl oz capacity for larger tanks
No price recorded yet.
VP Racing

1-Pack, 16 oz

+Sold as a 16 ounce bottle for fuel system cleaning
+Single 1-pack size for a one-time treatment
+Formulated as a fuel system cleaner with RP21 additive
−Only one 16 ounce bottle included in this pack
No price recorded yet.
Autoprofi

2-Pack

+Two-pack gives two bottles per purchase
+Cleans oxygen sensors and catalytic converters
+Works on engine, fuel and exhaust systems
No price recorded yet.
SMA ProQor

3-Pack, 15 oz

+Three-pack gives three 15 oz containers
+Fuel injector cleaner for engine fuel systems
+Includes an SMA ProQor towel in the set
No price recorded yet.
Berryman
+15 fl oz pour can size
+Named for high mileage engines
+Named as a fuel system rejuvenator
No price recorded yet.
Berryman

3-Pack, 15 oz

+Three-pack gives three 15 oz containers
+Cleans the entire fuel system for engines
+Fuel injector cleaner formula for engines
No price recorded yet.
Cataclean
+5 liter capacity for extended treatment
+Cleans fuel and exhaust systems
+Made for gasoline engines
No price recorded yet.
Chevron

6-Pack, 12 oz

+Six-pack gives six 12 oz bottles per case
+Concentrate plus fuel system cleaner formula
+12 oz bottles for fuel system treatment
No price recorded yet.
Liqui Moly
+Designed as a diesel system cleaner additive
+500 ml bottle size
+Workshop product line for professional use
No price recorded yet.
Liqui Moly
+Designed as a gasoline system cleaner additive
+500 ml bottle size
+Workshop product line for professional use
No price recorded yet.

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Spec scores, pros and cons, and prices are explained in the How it works section of the About page.