Ram Trucks 2015 Chassis Cab Commercial - Diesel Supplement - Manual (Page 286)

Engine Oil
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained at the correct level. Check
the oil level at regular intervals. The best time to check
the oil level is before starting the engine after it has been
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.
Engine Oil Dipstick
1 — ADD Range
2 — Full Mark
3 — SAFE Range
284 MAINTAINING YOUR VEHICLE