Front/Rear Axle Fluid - Jeep 2011 WK2 Grand Cherokee Owner's Manual

WARNING! (Continued)
• To avoid contamination from foreign matter
or moisture, use only new brake fluid or
fluid that has been in a tightly closed con-
tainer. Keep the master cylinder reservoir
cap secured at all times. Brake fluid in a
open container absorbs moisture from the
air resulting in a lower boiling point. This
may cause it to boil unexpectedly during
hard or prolonged braking, resulting in sud-
den brake failure. This could result in a
accident.
• Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot engine
parts, causing the brake fluid to catch fire.
Brake fluid can also damage painted and
vinyl surfaces, care should be taken to
avoid its contact with these surfaces.
• Do not allow petroleum based fluid to con-
taminate the brake fluid. Brake seal com-
ponents could be damaged, causing partial
or complete brake failure. This could result
in an accident.

Front/Rear Axle Fluid

For normal service, periodic fluid level checks
are not required. When the vehicle is serviced
for other reasons the exterior surfaces of the
axle assembly should be inspected. If gear oil
leakage is suspected inspect the fluid level.
Refer to "Fluids, Lubricants, and Genuine
Parts" in "Maintaining Your Vehicle" for further
information.
Front Axle Fluid Level Check
The front axle oil level needs to be between
1/8 in (3 mm) below the bottom of the fill hole
and the bottom of the fill hole.
The front axle fill and drain plugs should be
tightened to 22 to 29 ft lbs (30 to 40 N·m).
CAUTION!
Do not over tighten the plugs as it could
damage them and cause them to leak.
Rear Axle Fluid Level Check
The rear axle oil level needs to be between
1/8 in (3 mm) below the bottom of the fill hole
and the bottom of the fill hole.
The rear axle fill and drain plugs should be
tightened to 22 to 29 ft lbs (30 to 40 N·m) on
axles with aluminum housings. The rear axle fill
and drain plugs should be tightened to 22 to
52 ft lbs (30 to 70 N·m) on axles with cast iron
housings.
CAUTION!
Do not over tighten the plugs as it could
damage then and cause them to leak.
Selection of Lubricant
Use only the manufacturer's recommended
fluid. Refer to "Fluids, Lubricants, and Genuine
Parts" in "Maintaining Your Vehicle" for further
information.
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