Extreme Cold Weather (Below –20°F Or –29°C)
Jeep Liberty / Jeep Liberty Owners Manual / Starting And Operating / Starting Procedures / Extreme Cold Weather (Below –20°F Or –29°C)
To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your authorized dealer) is recommended.
See also:
Engine
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Frequency Of Fluid Change
Under normal operating conditions, the fluid installed at the factory will give
satisfactory lubrication for the life of the vehicle. If the fluid becomes contaminated
with water, it should be cha ...
Synthetic Engine Oils
Synthetic engine oils can be used if the recommended oil quality requirements
are met, and the recommended maintenance intervals for oil and filter changes are
followed. ...