Rear Axle

When to Check Lubricant

It is not necessary to regularly check rear axle fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired.

How to Check Lubricant

To get an accurate reading, the vehicle should be

To get an accurate reading, the vehicle should be on a level surface.

The proper level is from 0 to 3/8 inch (0 to 10 mm) below the bottom of the filler plug hole, located on the rear axle.

What to Use

To determine what kind of lubricant to use.

    See also:

    Transferring Service
    Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has chan ...

    Finish Care
    Application of aftermarket clearcoat sealant/wax materials is not recommended. If painted surfaces are damaged, see your dealer to have the damage assessed and repaired. Foreign materials su ...

    Driving experience
    The chassis and structural systems were developed in Germany and give the Buick Regal the handling and dynamics of a premium European sport sedan, as well as the quiet, refined ride and road manne ...