Black plate (8,1)
GMC Yukon Denali/Yukon XL Denali Owner Manual - 2012 - CRC 2nd
Edition - 11/9/11
10-8
Vehicle Care
Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“
Selecting the Right Engine Oil
”
in this section.
.
Check the engine oil level
regularly and maintain the
proper oil level. See
“
Checking
Engine Oil
”
and
“
When to Add
Engine Oil
”
in this section.
.
Change the engine oil at the
appropriate time. See
.
Always dispose of engine oil
properly. See
“
What to Do with
Used Oil
”
in this section.
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 vehicle
must be on level ground. The
engine oil dipstick handle is a yellow
loop. See
for the
location of the engine oil dipstick.
Obtaining an accurate oil level
reading is essential:
1. If the engine has been running
recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.
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.
When to Add Engine Oil
If the oil is below the cross-hatched
area at the tip of the dipstick, add
1 L (1 qt) of the recommended oil
and then recheck the level. See
“
Selecting the Right Engine Oil
”
in
this section for an explanation of
what kind of oil to use. For engine
oil crankcase capacity, see
Capacities and Specifications on
page 12
.
