On models with All Wheel Drive (AWD), a power transfer unit is used that is connected to the transaxle. This unit is separate from the other drive train components.
Chrysler recommends the use of Multi-purpose Gear Oil SAE 80W-90, meeting API specification GL-5. The module is full when the fluid level is at the bottom of the filler hole opening.
See Figure 1
The Power Transfer Unit fluid level can only be checked and topped off, if necessary, but it cannot be drained and refilled. To check, remove the fill plug and place your finger in the hole. The fluid level should be to the bottom of the fill plug hole.
DRAIN & REFILL
The PTU cannot be serviced. If fluid leakage is detected, the unit must be disassembled and the seals replaced.