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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 is
located in the engine
compartment on the
driver’s side of the vehicle.
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.
When to Add Engine Oil
If the oil is at or below the cross-hatched area at the tip
of the dipstick, then you will need to add at least one
quart 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 Speci cations
on page 5-93.
Notice:Do not add too much oil. If your engine has
so much oil that the oil level gets above the
cross-hatched area that shows the proper operating
range, your engine could be damaged.
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The engine oil fill cap is
located near the engine oil
dipstick in the engine
compartment, on the
driver’s side of the vehicle.
Be sure to add enough oil to put the level somewhere in
the proper operating range in the cross-hatched area.
Push the dipstick all the way back in when you are
through.
What Kind of Engine Oil to Use
Look for two things:
•GM6094M
Your vehicle’s engine requires oil meeting GM
Standard GM6094M. You should look for and use
only an oil that meets GM Standard GM6094M.
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What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Do not let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a good
hand cleaner. Wash or properly dispose of clothing or
rags containing used engine oil. See the manufacturer’s
warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from the
filter before disposal. Never dispose of oil by putting it
in the trash, pouring it on the ground, into sewers, or into
streams or bodies of water. Instead, recycle it by
taking it to a place that collects used oil. If you have a
problem properly disposing of your used oil, ask
your dealer, a service station or a local recycling center
for help.
Engine Oil (DURAMAX™ Diesel)
Checking Engine Oil
It is a good idea to check your engine oil level every
time you get fuel.
The engine oil dipstick is
located in the engine
compartment on the
driver’s side of the vehicle.
In order to get an accurate reading, the oil must be
warm (at normal operating temperature) and the vehicle
must be on level ground.
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Turn off the engine and give the oil at least five minutes
to drain back into the oil pan. With a cool engine,
allow 30 minutes. 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 a
cloth, then push it back in all the way. Remove it
again, keeping the tip down.
6.6L V8 (LB7/LLY) Engines
7.8L L6 (LG4) Engine
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When to Add Engine Oil
If the oil is at or below the cross-hatched area at the tip
of the dipstick for the 6.6L V8 (LB7/LLY) engines,
then you will need to add at least two quarts of oil. If the
oil is at or below the A mark for the 7.8L L6 (LG4)
engine, then you will need to add at least one quart 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 Speci cations on
page 5-93.
Notice:Do not add too much oil. If your engine has
so much oil that the oil level gets above the
cross-hatched area for the 6.6L V8 (LB7/LLY)
engines or above the F mark for the 7.8L L6 (LG4)
engine, your engine could be damaged.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.6.6L V8 (LB7) Engine
6.6L V8 (LLY) and 7.8L
L6 (LG4) Engines
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