Jeep Liberty: MMT In Gasoline - Fuel Requirements - Starting And Operating - Jeep Liberty Owner's ManualJeep Liberty: MMT In Gasoline

MMT is a manganese containing metallic additive that is blended into some gasoline to increase octane. Gasoline blended with MMT provides no performance advantage beyond gasoline of the same octane number without MMT. Gasoline blended with MMT reduces spark plug life and reduces emission system performance in some vehicles. The manufacturer recommends that gasoline without MMT be used in your vehicle. The MMT content of gasoline may not be indicated on the gasoline pump; therefore, you should ask your gasoline retailer whether the gasoline contains MMT. It is even more important to look for gasolines without MMT in Canada, because MMT can be used at levels higher than those allowed in the United States. MMT is prohibited in Federal and California reformulated gasoline.

    E-85 Usage In Non-Flex Fuel Vehicles
    Non-FFV vehicles are compatible with gasoline containing 10% ethanol (E10). Gasoline with higher ethanol content may void the vehicle’s warranty. If a Non-FFV vehicle is inadvertently fueled wi ...

    Materials Added To Fuel
    All gasoline sold in the United States is required to contain effective detergent additives. Use of additional detergents or other additives is not needed under normal conditions and they would ...

    See also:

    Parking brake reminder chime
    The parking brake reminder chime will sound if the vehicle is driven at more than 4 MPH (7 km/h) with the parking brake applied. Stop the vehicle and release the parking brake. ...

    Useful information
    This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific diffe ...

    Removing the cover to access the bulbs
    NOTE Before starting to replace a bulb, see page 322. 1. Open the retaining clamps by pressing them to the sides. 2. Pull the cover straight out. Reinstall the cover in the reverse order. ...