Automatic Transmission - If Equipped - Jeep Wrangler Owner's Manual

Automatic Transmission – If Equipped
Selection of Lubricant
It is important that the proper lubricant is used
in the transmission to assure optimum transmis-
sion performance. Use only manufacturer's
recommended transmission fluid. Refer to "Flu-
ids, Lubricants, and Genuine Parts" in "Main-
taining Your Vehicle" for further information. It is
important that the transmission fluid be main-
tained at the prescribed level using the recom-
mended fluid. No chemical flushes should be
used in any transmission; only the approved
lubricant may be used.
CAUTION!
Using a transmission fluid other than the manu-
facturer's recommended fluid may cause dete-
rioration in transmission shift quality and/or
torque converter shudder. Using a transmission
fluid other than the manufacturer's recom-
mended fluid will result in more frequent fluid
and filter changes. Refer to "Fluids, Lubricants,
and Genuine Parts" in "Maintaining Your Ve-
hicle" for further information.
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Special Additives
Automatic Transmission Fluid (ATF) is an engi-
neered product and its performance may be
impaired by supplemental additives. Therefore,
do not add any fluid additives to the transmis-
sion. The only exception to this policy is the use
of special dyes to aid in detecting fluid leaks. In
addition, avoid using transmission sealers as
they may adversely affect seals.
CAUTION!
Do not use chemical flushes in your transmis-
sion as the chemicals can damage your trans-
mission components. Such damage is not
covered by the New Vehicle Limited Warranty.
Fluid Level Check
Check the fluid level while the transmission is at
normal operating temperature 180° F (82° C).
This occurs after at least 15 miles (25 km) of
driving. At normal operating temperature, the
fluid cannot be held comfortably between the
fingertips.
To properly check the automatic transmission
fluid level, the following procedure must be
used:
1. Operate the engine at idle speed and nor-
mal operating temperature.
2. The vehicle must be on level ground.
3. Fully apply the parking brake.
4. Place the shift lever momentarily into each
gear position ending with the shift lever in
PARK.
5. Remove the dipstick, wipe it clean and
reinsert it until seated.
6. Remove the dipstick again and note the fluid
level on both sides. The fluid level should be
between the HOT (upper) reference holes on
the dipstick at normal operating temperature.
Verify that a solid coating of oil is seen on both
sides of the dipstick. If the fluid is low, add as
required into the dipstick tube. Do not overfill.
After adding any quantity of oil through the
dipstick tube, wait a minimum of two minutes
for the oil to fully drain into the transmission
before rechecking the fluid level.