Jeep Liberty: Materials Added To Engine Oil - Engine Oil - Maintenance Procedures - Maintaining Your Vehicle - Jeep Liberty Owner's ManualJeep Liberty: Materials Added To Engine Oil

Do not add any supplemental additives, other than leak detection dyes, to your engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives.

    Synthetic Engine Oils
    You may use synthetic engine oils provided the recommended oil quality requirements are met, and the recommended maintenance intervals for oil and filter changes are followed. ...

    Disposing Of Used Engine Oil And Oil Filters
    Care should be taken in disposing of used engine oil and oil filters from your vehicle. Used oil and oil filters, indiscriminately discarded, can present a problem to the environment. Contact yo ...

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    Tachometer
    Tachometer The tachometer indicates engine speed in revolutions per minute. CAUTION: Never drive with the engine speed indicator in the red zone or severe engine damage can result. ...

    Horn
    Horn To sound the horn, push the horn pad. ...

    Seat heaters
    1 Heats the driver’s seat 2 Heats the front passenger’s seat The indicator light is on while the seat heater is operating. Push the switch once again to turn off the seat heater. ■T ...