Subaru Forester: MMT - Fuel requirements - Fuel - Starting and operating - Subaru Forester Owner's ManualSubaru Forester: MMT

Some gasoline contains an octane-enhancing additive called MMT (Methylcyclopentadienyl Manganese Tricarbonyl). If you use such fuels, your emission control system performance may deteriorate and the CHECK ENGINE warning light/Malfunction indicator lamp may turn on. If this happens, return to your authorized SUBARU Dealer for service. If it is determined that the condition is caused by the type of fuel used, repairs may not be covered by your warranty.

    Gasoline for California-certified LEV
    If your vehicle was certified to California’s low emission vehicle (LEV) standards as indicated on the underhood tune-up label, it is designed to optimize engine and emission performance wit ...

    Gasoline for cleaner air
    Your use of gasoline with detergent additives will help prevent deposits from forming in your engine and fuel system. This helps keep your engine in tune and your emission control system workin ...

    See also:

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