2007 GMC YUKON XL oil dipstick

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 443.
B. Air Filter Restriction Indicator (If Equipped).
SeeEngine Air Cleaner/Filter on page 443.
C. Coolant Surge Tank and Pressure Cap.
SeeCooling System on page 455andCoolant
Surge Tank Pressure Cap on page 451.
D. Remote Positive (+) Terminal. SeeJump
Starting on page 467.
E. Battery. SeeBattery on page 466.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 438.
G. Automatic Transmission Dipstick. See
“Checking the Fluid Level” underAutomatic
Transmission Fluid on page 445.H. Remote Negative (−) Terminal (Out of View).
SeeJump Starting on page 467.
I. Engine Oil Dipstick (Out of View). See
“Checking Engine Oil” underEngine Oil on
page 438.
J. Engine Cooling Fan. SeeCooling System on
page 455.
K. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 461.
L. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 463.
M. Underhood Fuse Block. SeeUnderhood Fuse
Block on page 543.
N. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 462.
437

Engine Oil
If the CHECK OIL LEVEL message appears on
the instrument cluster, it means you need to check
your engine oil level right away.
For more information, see CHECK OIL LEVEL
underDIC Warnings and Messages on page 254.
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.
SeeEngine Compartment Overview on page 436
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.
438

When to Add Engine Oil
If the oil is below the cross-hatched area at the tip
of the dipstick, you will need to add at least one
quart/liter of oil. But you must use the right
kind. This section explains what kind of oil to use.
For engine oil crankcase capacity, seeCapacities
and Specications on page 548.
Notice:Do not add too much oil. If the engine
has so much oil that the oil level gets above the
cross-hatched area that shows the proper
operating range, the engine could be damaged.SeeEngine
Compartment Overview
on page 436for the
location of the engine oil
ll cap.
Be sure to add enough oil to put the level
somewhere in the proper operating range. Push
the dipstick all the way back in when you are
through.
439

{CAUTION:
Operating the engine with the air
cleaner/lter off can cause you or others
to be burned. The air cleaner not only
cleans the air; it helps to stop ames if
the engine backres. If it is not there and
the engine backres, you could be
burned. Do not drive with it off, and be
careful working on the engine with the air
cleaner/lter off.
Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
A good time to check your automatic transmission
uid level is when the engine oil is changed.
Change the uid and lter at the intervals listed in
Additional Required Services on page 557, and
be sure to use the transmission uid listed in
Recommended Fluids and Lubricants on page 564.
How to Check Automatic
Transmission Fluid
Because this operation can be a little difficult, you
may choose to have this done at the dealership
service department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading
on the dipstick.
Notice:Too much or too little uid can
damage your transmission. Too much can
mean that some of the uid could come out
and fall on hot engine part or exhaust system
parts, starting a re. Too little uid could
cause the transmission to overheat. Be sure to
get an accurate reading if you check your
transmission uid.
Wait at least 30 minutes before checking the
transmission uid level if you have been driving:
When outside temperatures are above
90°F (32°C).
At high speed for quite a while.
In heavy traffic — especially in hot weather.
While pulling a trailer.
445