Engine Oil - Hummer 2005 H2 Owner's Manual

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A. Coolant Surge Tank. See Cooling System on
page 5-29 and Coolant Surge Tank Pressure Cap
on page 5-26.
B. Engine Air Cleaner/Filter and Air Filter Restriction
Indicator (If Equipped). See Engine Air Cleaner/Filter
on page 5-18.
C. Windshield Washer Fluid Reservoir. See "Adding
Washer Fluid" under Windshield Washer Fluid
on page 5-34.
D. Engine Oil Fill Cap. See "When to Add Engine Oil"
under Engine Oil on page 5-13.
E. Engine Oil Dipstick. See "Checking Engine Oil"
under Engine Oil on page 5-13.
F. Automatic Transmission Fluid Dipstick. See
"Checking the Fluid Level" under Automatic
Transmission Fluid on page 5-21.
G. Fan. See Cooling System on page 5-29.
H. Remote Negative ( ) Terminal (GND). See Jump
Starting on page 5-39.
I. Power Steering Fluid Reservoir (Out of View). See
Power Steering Fluid on page 5-33.
J. Remote Positive (+) Terminal. See Jump Starting on
page 5-39.
K. Brake Fluid Reservoir. See "Brake Fluid" under
Brakes on page 5-35.
L. Underhood Fuse Block. See Underhood Fuse Block
on page 5-107.
M. Battery. See Battery on page 5-38.

Engine Oil

If the CHECK OIL LEVEL message appears on the
Driver Information Center (DIC), it means you need to
check your engine oil level right away. For more
information, see CHECK OIL LEVEL under DIC
Warnings and Messages on page 3-47.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It is 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.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12 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 you do not do this,
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.
5-13

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