Jeep Liberty: 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 recommended engine oil viscosity for your engine. For information on engine oil filler cap location, refer to “Engine Compartment” in “Maintaining Your Vehicle” for further information.
Lubricants which do not have both the engine oil certification mark and the correct SAE viscosity grade number should not be used.
American Petroleum Institute (API) Engine Oil Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils.
CAUTION!
Do not use chemical flush ...
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. ...
See also:
How BLIS functions in daylight and darkness
Daylight
BLIS reacts to the shape of surrounding vehicles.
The system is designed to help detect
motor vehicles such as cars, trucks, buses,
motorcycles, etc.
Darkness
BLIS reacts to the headl ...
Reporting safety defects
In the 50 United States and Washington, D.C.
If you believe that your vehicle has a defect that could
cause a crash or cause injury or death, you should
immediately inform the National Highway Tr ...
Vehicle identification number (VIN)
The vehicle identification number (VIN) is the
number used in registering your car and in all
legal matters pertaining to its ownership, etc. It
can be found in three different places on your ...