Engine Oil (Gasoline Engine); Checking Engine Oil - GMC C series 2002 Owner's Manual

Engine Oil (Gasoline Engine)

Checking Engine Oil

It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
6-14
The engine oil dipstick is
located on the driver's side
of the engine compartment.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil dipstick
might not show the actual level.
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.