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SI-1 Fuel System Cleaner

Item 383777
AmericanMuscle no longer carries the SI-1 Fuel System Cleaner. Please check out Home for an updated selection.
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    Product Information

    Features, Description, Reviews, Q&A, Specs & Installation


    • Tune-Up in a Bottle
    • Cleans and Lubricates the Entire Fuel System
    • Reduces Need for Octane by Up to Two Points
    • Safe for Continual Use
    • For Use on All 1979-2022 Mustangs
    • 15 fl oz Bottle - Sold Individually


    Tune-Up In A Bottle. Red Line SI-1 Fuel System Cleaner is designed to increase power, fuel mileage and lower exhaust emissions by cleaning and lubricating your entire fuel system (including carburetor and injectors) allowing fuel to burn more efficiently for maximum power, fuel economy and fewer emissions.

    Easy To Use. Just pour one 15oz bottle directly into the fuel tank of your neglected vehicle for the most effective treatment. Use in smaller doses as routine maintenance because one 15oz bottle can treat up to 100 gallons of fuel.

    Application. Red Line SI-1 Complete Fuel System Cleaner is safe for use in all 1979-2022 Mustangs, including the LX, V6, GT, Bullitt, Mach 1, SVT Cobra, BOSS and Shelby GT500 models. Sold individually.

    Technical Note. Red Line Fuel Cleaner CAN NOT be shipped outside of the United States. It CAN ONLY be shipped using Ground service.

    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) 15 fluid oz bottle

    Tech Specs


    Customer Reviews (28)

      Questions & Answers

      10 More Questions