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:
The Inside
The previous-generation Grand Cherokee lacked an interior to match its price,
but the all-new cabin in the 2011 model uses premium materials and a less blocky
design to give the SUV a more luxurio ...
Materials Added To Engine Oils
Do not add any supplemental materials, other than leak detection dyes, to your
engine oil. Engine oil is an engineered product and its performance may be impaired
by supplemental additives. ...
Operation Instructions - Auxiliary Mode
The auxiliary (AUX) jack is an audio input jack, which
allows the user to plug in a portable device, such as an
MP3 player, or cassette player, and utilize the vehicle’s
audio system to amplif ...