1991 Jeep Comanche MJ PDF Print E-mail
Written by Ewan Wallis   
Thursday, 21 May 2009 14:37

Current Specs

  • 2.5L 150ci inline 4 cylinder with multi-port fuel injection
  • Aisin 5 speed AX5 light duty transmission
  • New Process NP-231 4x4 xfer-case
  • Dana 30 non-vacuum front axle /w 3.54's
  • Dana 35 rear axle /w 3.54's

To Do's

Maintenance

 I use full synthetic oils the engine and driveline. I'll use any full synthetic 10w30 motor oil currently on sale at time of purchase. I always use FRAM oil filters, I've never had a problem with them. The transmission, transfer case, and differentials receive Redline brand oils.

Item
Item Type
 OilQuantity Interval
 Engine 2.5 L
 10w304 quarts6,000-8,000 m*
 Transmission AX5 MTL** 2 quarts25,000-30,000 mi
 Transfer case
 NP-231 ATF
 1.5 quarts25,000-30,000 mi
 Front Diff Dana 30
75w90NS***
~2 quarts30,000-35,000 mi
 Rear Diff
 Dana 35
75w90NS****
~2 quarts
30,000-35,000 mi

* Depends on how hard I am on engine. (offroad, driving conditions, 4x4, etc..)

** Redline MTL is 75w90 GL-4 gear oil. Same viscosity as 5w30.

*** Redline NS branded oil is for open differentials (no posi or limited slip)

**** I use 75w140 for ring & pinion break-in or towing.

 
Last Updated on Saturday, 30 May 2009 15:19