Jeep Liberty: Synthetic Engine Oils - Engine Oil - Maintenance Procedures - Maintaining Your Vehicle - Jeep Liberty Owner's ManualJeep Liberty: 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.

    Engine Oil Viscosity
    SAE 5W-20 engine oil is recommended for all operating temperatures. This engine oil improves low temperature starting and vehicle fuel economy. The engine oil filler cap also shows the recommend ...

    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. ...

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    All ChildrenMust Be Restrained
    Each year, many children are injured or killed in vehicle crashes because they are either unrestrained or not properly restrained. In fact, vehicle accidents are the number one cause of the ...

    Positions of the ignition
    1. Off— locks the gearshift lever and allows key removal. Note: In order to switch off the engine while the vehicle is in motion, shift to neutral and use the brakes to bring the vehicle to a s ...

    Replacing lost transmitters
    If you lose a transmitter or want to purchase additional transmitters (up to four can be programmed), you should reprogram all of your transmitters for security reasons. It is recommended that ...