Ram Trucks 2015 Chassis Cab Commercial - Diesel Supplement - Manual (Page 287)

Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Add oil
only when the level on the dipstick is below the “ADD”
mark. The total capacity from the ADD mark to the Full
mark is 2 qts (1.9L).
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could damage
your engine.
Never operate the engine with oil level below the “ADD”
mark or above the upper “SAFE” mark.
Change Engine Oil
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacturer only rec-
ommends engine oils that are API CJ-4 certified and meet
the requirements of Chrysler Group LLC. Use MOPAR® or
an equivalent oil meeting Chrysler Material Standard MS-
10902. Products meeting Cummins® CES 20081 may also
be used. The identification of these engine oils are typically
located on the back of the oil container.
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.
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MAINTAINING YOUR VEHICLE 285