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 flushes in your engine oil as the
chemicals can damage your engine. Such damage is
not covered by the New Vehicle Limited Warranty.
See also:
After Starting
The idle speed is controlled automatically and it will
decrease as the engine warms up. ...
Jeep Trail Rated
All 2011 Jeep Grand Cherokees equipped with either the off-road or the
Quadra-Lift group are Trail Rated®. The Jeep Trail Rated badge on the 2011 Jeep
Grand Cherokee indicates that the vehicle ha ...
Selection Of Lubricant
It is important that the proper lubricant is used in the
transmission to assure optimum transmission performance.
Use only the manufacturer’s recommended transmission
fluid. Refer to “Fluids, ...


