Fuel System Cleaners

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

Recommended Fuel System Cleaners

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.

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.

Lucas Oil

1-Pack, 16 oz

+Designed to help enhance engine performance

+Designed to help keep the emissions system clean

+16 oz bottle size

No price recorded yet.

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