Front/Rear Axle Fluid - Jeep WRANGLER 2020 Owner's Manual

336 SERVICING AND MAINTENANCE
WARNING!
Use only manufacturer's recommended

brake fluid. Refer to "Fluids And Lubricants"
in "Technical Specifications" for further infor-
mation. Using the wrong type of brake fluid
can severely damage your brake system
and/or impair its performance. The proper
type of brake fluid for your vehicle is also
identified on the original factory installed
hydraulic master cylinder reservoir.
To avoid contamination from foreign matter

or moisture, use only new brake fluid or fluid
that has been in a tightly closed container.
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 sudden brake
failure. This could result in a collision.
WARNING! (Continued)
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

contaminate the brake fluid. Brake seal
components could be damaged, causing
partial or complete brake failure. This could
result in a collision.

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 And Lubricants" in "Technical
(Continued)
Specifications" for further information.
Fluid Level Check
Lubricant should be approximately 1/8 inch
(3 mm) below the bottom edge of the oil fill hole.
NOTE:
Make sure that the vehicle is level and
supported by the axles
Adding Fluid
Add lubricant only at the fill hole and only to the
level specified above.
Selection Of Lubricant
Use only the manufacturer's recommended
fluid. Refer to "Fluids And Lubricants" in
"Technical Specifications" for further
information.