Real Jeeps have dents
Join Date: Apr 2002
Location: out in the garage - Minneapolis
Synchromesh is the best current choice.
Cherokee Fluid Capacities
-2.5L (4cyl) - 4.0 Quarts (3.8L)
-4.0L (6cyl) - 6.0 Quarts (5.7L)
-2.5L (4cyl) - 9.0 Quarts (8.5L)
-4.0L (6cyl) - 10.5 Quarts (9.9L)
The 4.0L (6cyl) AW-4 Automatic Transmission uses Transmission Fluid labeled Dexron-III/Mercon.
-Drain and Re-fill = 4 Quarts (3.8L)
-Filter and complete fluid exchange = 8 Quarts (7.8 L)
-2.5L (4cyl) Chrysler/Mopar AutomaticTransmissions use ATF+3 or ATF+4 Type 7176
Chrysler recommends that 10w-30 motor oil be used in XJ Cherokee manual transmissions.
Jeep owners report good results with Synchromesh fluid.
-AX-5 5 speed manual - 3.3 quarts 75W-90 GL3 or GL4 (NOT GL5 or GL5 compatible as incorrectly stated in some Owners Manuals)
-AX-15 5 speed manual - 3.32 quarts 75W-90 GL3 or GL4 (NOT GL5 or GL5 compatible as incorrectly stated in some Owners Manuals)
-NV 3550 5 speed manual - 2.1 quarts Mopar fluid part # 04874464AA or Synchromesh (meets Mopar MS-9224 specs)
The NLGI specs are important -typical NLGI GL-5 gear oil carries added sulphur used as an Extreme Pressure (EP) lubricant. Especially when heated, sulphur is antagonistic to yellow (copper-based) metals - and the synchronizer rings and any bushings in the AX-15 are bronze. Most synthetic gear oils are rated GL-5 and are listed as"safe for use with yellow metals."
Unlike API specs (to API Service SL/CJ-4,) NLGI Service specifications are not reverse-compatible.
If you want to use a synthetic (RedLine, AmsOil, etc.) either check the back ofthe bottle or check the manufacturer's website to make sure it's safe for use with yellow metal. Using sulphur-bearing gear oils usually results in draining your synchronizer rings at your next fluid change...
-NV231 Part-Time (Command-Trac) - 2.2 Pints (1.0L) Dexron-III/Mercon
-NV242 Full-Time (Selec-Trac) – 2.85 Pints (1.3L) Dexron-III/Mercon
-Dana 30 - 2.5 Pts (1.2L) SAE 75W-90
-When equipped, Trac-Lok Limited Slip rear axles require 4 ounces of Friction Modifier Additive.
-Dana 35 - 3.5 Pints (1.66L) SAE 75W-90
-Dana 44 - 4.0 Pints (1.89L) SAE 75W-90
-Chrysler 8.25 - 4.4 Pints (2.0L) SAE 75W-90
For towing and off-road use SAE 75-140 synthetic
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