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Rear Axle
When to Check Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant. See "Periodic Maintenance
Inspections" in the Index.
How to Check Lubricant
If the level is below the bottom of the filler plug hole,
you'll need to add some lubricant. Add enough lubricant
to raise the level to the bottom of the filler plug hole.
What to Use
To add lubricant when the level is low, use Axle
Lubricant (GM Part No. 12345977) or SAE 8OW-90
GL-5 gear lubricant. To completely refill after draining,
add 4 ounces (1 18 ml) of Limited-Slip Differential
Lubricant Additive (GM Part No. 1052358). Then fill to
the bottom of the filler plug hole with Axle Lubricant
(GM Part No. 12345977) or SAE 8OW-90 GL-5
gear lubricant.
Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle for
5
years or 150,000 miles
(240 000
k m )
whichever occurs first, if you add only
DEX-COOL6 extended life coolant.
8
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, see "Engine Overheating" in
the Index.
6-22
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