Do not overfill.; If the fluid temperature is below 50°F (10°C) it may not; register on the dipstick. Do not add fluid until the- Page 398

2018 Jeep Wrangler JK Owner Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
SAFETY
OCCUPANT RESTRAINT SYSTEMS
STARTING AND OPERATING
SERVICING AND MAINTENANCE
MULTIMEDIA
UCONNECT PHONE — IF EQUIPPED
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3. Run the engine at normal idle speed for at least 60

seconds, and leave the engine running for the rest of this

procedure.

4. Fully apply the parking brake, and press the brake

pedal.

5. Place the gear selector momentarily into each gear

position (allowing time for the transmission to fully

engage in each position), ending with the transmission

in PARK.

6. Remove the dipstick, wipe it clean and reinsert it until

seated.

7. Remove the dipstick again and note the fluid level on

both sides. The fluid level reading is only valid if there

is a solid coating of oil on both sides of the dipstick.

Note that the holes in the dipstick will be full of fluid if

the actual level is at or above the hole. The fluid level

should be between the HOT (upper) reference holes on

the dipstick at normal operating temperature. If the

fluid level is low, add fluid through the dipstick tube to

bring it to the proper level.

Do not overfill.

Use ONLY

the specified fluid (refer to

Fluids And Lubricants

under “Technical Specifications” for fluid specifica-

tions). 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.

NOTE:

The holes in the dipstick will be full of fluid if the

actual level is at or above the hole.

If it is necessary to check the transmission below the

operating temperature, the fluid level should be be-

tween the two COLD (lower) holes on the dipstick

with the fluid at approximately 80°F (27°C). If the fluid

level is correctly established at 80° F (27°C), it should

be between the HOT (upper) reference holes when the

transmission reaches 180° F (82°C). Remember it is best

to check the level at the normal operating temperature.

CAUTION!

If the fluid temperature is below 50°F (10°C) it may not
register on the dipstick. Do not add fluid until the
temperature is elevated enough to produce an accurate
reading. Run the engine at idle, in PARK, to warm the
fluid.

396

SERVICING AND MAINTENANCE

Detailed Information for 2018 Jeep Wrangler JK Owner Manual

Lists of information found in 2018 Jeep Wrangler JK Owner Manual - Page 398

  • 3. Run the engine at normal idle speed for at least 60 seconds, and leave the engine running for the rest of this procedure.
  • 4. Fully apply the parking brake, and press the brake pedal.
  • 5. Place the gear selector momentarily into each gear position (allowing time for the transmission to fully engage in each position), ending with the transmission in PARK.
  • 6. Remove the dipstick, wipe it clean and reinsert it until seated.
  • 7. Remove the dipstick again and note the fluid level on both sides.
  • The holes in the dipstick will be full of fluid if the actual level is at or above the hole.
  • If it is necessary to check the transmission below the operating temperature, the fluid level should be be- tween the two COLD (lower) holes on the dipstick with the fluid at approximately 80°F (27°C).

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