Dodge 2010 Ram Truck Chassis Owner's Manual page 322

320 MAINTAINING YOUR VEHICLE
parked overnight. When checking oil after operating the
engine, first ensure the engine is at full operating tem-
perature, then wait for 30 minutes after engine shutdown
to check the oil.
1 — ADD Range
2 — Full Mark
3 — SAFE Range
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 low mark to the high
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 "Maintenance Schedule/Oil Change Indicator
System" for the recommended engine oil change intervals.