American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American Petro-
leum Institute (API). The manufac-
turer only recommends API Certified
engine oils.
Oils with a high ash content may produce damaging
deposits on cylinder head valves and/or aftertreatment
system damage. A maximum sulfated ash content of 1.00
mass % is recommended for all oil used in the engine.
The same oil change interval is to be followed for
synthetic oil as for petroleum based oil. Also, synthetic oil
must meet the same performance specifications as petro-
leum oil.
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.
Engine Oil Viscosity (SAE Grade)
In ambient temperatures above 0°F (-18°C), we recommend
you use SAE 15W-40 engine oil such as MOPAR®, Shell
Rotella® and Shell Rimula® that meets Chrysler Material
Standard MS-10902 and the API CJ-4 engine oil category is
required. Products meeting Cummins® CES 20081 may also
be used. The identification of these engine oils is typically
located on the back of the oil container.
In ambient temperatures below 0°F (-18°C), SAE 5W-40
we recommend you use synthetic engine oil such as
MOPAR®, Shell Rotella® and Shell Rimula® that meets
Chrysler Materials Standard MS-10902 and the API CJ-4
engine oil category is required.
282 MAINTAINING YOUR VEHICLE
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