Engine Oil - GMC 2010 Sierra Owner's Manual

A. Engine Air Cleaner/Filter on page 6 22.
B. Coolant Surge Tank and Pressure Cap.
See Cooling System on page 6 32.
C. Positive (+) Terminal. See Jump Starting on
page 6 49.
D. Battery on page 6 48.
E. Engine Oil Fill Cap. See When to Add Engine Oil
under Engine Oil on page 6 17.
F. Automatic Transmission Dipstick. See Checking
the Fluid Level under Automatic Transmission
Fluid (4-Speed Transmission) on page 6 24 or
Automatic Transmission Fluid (6-Speed
Transmission) on page 6 28.
G. Remote Negative ( ) Terminal (Out of View).
See Jump Starting on page 6 49.
H. Engine Oil Dipstick (Out of View). See Checking
Engine Oil under Engine Oil on page 6 17.
I. Engine Cooling Fan. See Cooling System on
page 6 32.
J. Power Steering Fluid Reservoir. See Power
Steering Fluid on page 6 42.
K. Brake Master Cylinder Reservoir. See Brake
Fluid under Brakes on page 6 45.
L. Underhood Fuse Block on page 6 133.
M. Windshield Washer Fluid Reservoir. See Adding
Washer Fluid under Windshield Washer Fluid on
page 6 43.

Engine Oil

For diesel engine vehicles, see Engine Oil in the
®
DURAMAX Diesel manual.
Checking Engine Oil
It is a good idea to check the engine oil level at each
fuel fill. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 6 16 for the
location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If this is not done, the
oil dipstick might not show the actual level.
2. 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.
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