Cadillac 2007 User Manual
Page 445
All axle assemblies are filled by volume of fluid
during production. They are not filled to reach
a certain level. When checking the fluid level on
any axle, variations in the readings can be caused
by factory fill differences between the minimum
and the maximum fluid volume. Also, if a vehicle
has just been driven before checking the fluid
level, it may appear lower than normal because
fluid has traveled out along the axle tubes and has
not drained back to the sump area. Therefore, a
reading taken five minutes after the vehicle
has been driven will appear to have a lower fluid
level than a vehicle that has been stationary
for an hour or two. Remember that the rear axle
assembly must be supported to get a true reading.
How to Check Lubricant
To get an accurate reading, the vehicle should be
on a level surface.
The proper level is from 0.04 inch to 0.75 inch
(1.0 mm to 19.0 mm) below the bottom of the filler
plug hole, located on the rear axle. Add only
enough fluid to reach the proper level.
What to Use
Refer to the Maintenance Schedule to determine
what kind of lubricant to use. See Recommended
Fluids and Lubricants on page 533.
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