- Drain and Re-fill = 4 Quarts (3.8L)
- Filter and complete fluid exchange = 8 Quarts (7.8 L)
-2.5L (4cyl) Chrysler/Mopar Automatic Transmissions use ATF+3 or ATF+4 Type 7176
Chrysler now recommends that 10w-30 motor oil be used in Cherokee manual transmissions
-AX-5 5 speed manual - 3.3 quarts 75W-90 GL3 or GL4 (NOT GL5or GL5 compatible as incorrectly stated in some Owners Manuals)
-AX-15 5 speed manual - 3.32 quarts 75W-90 GL3 or GL4 (NOT GL5or GL5 compatible as incorrectly stated in some Owners Manuals)
-NV3550 5 speed manual - 2.1 quarts Mopar fluid part # 04874464AA or Snychromax (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 engine oil specs, NLGI gear oil Service Specifications are not reverse-compatible.
If you want to use a synthetic (RedLine, AmsOil, etc.) either check the back of the 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.
So i should use 10w-30 motor oil in my ax-15 transmission? is there any kinds you would recommend? and it shouldn't be synthetic right?
I used 80w-90 gear oil when i changed both of my differential fluids. Is that going to be a problem?
I live in Oregon. so i use 4x4 every now and then, and temp can go anywhere from 20 to 90 degrees here.
I just serviced my "new to me" AX-15 2 weeks ago I drank the kool-aid and used a VERY stout HD 10-30 with a 1/2qt of 15-40...............
I'm here to tell ya this shouild not be used in a gear box it SEVERLY lacks the proper add-pak for a gear box, I can tell a HUGE diiferance in my gears that is no good.
Do your self a favor and get the correct fluid a GL-4 or 3 rated GEAR oil.I just ordered 4qts of AMSOIL MTG GL-4 today to "re-do" minehttp://www.amsoil.com/storefront/mtg.aspx
REDLINE makes a GL-4, or you can get advance house brand dinno. for like $50 per 5gal bucket.
A gear box needs a fluid with an EP additive and with friction modifiers and a higher visc and pour point than MOTOR oil, compare the 100c and 40c cst of gear oil vs that of a good quality motor oil those number alone tell you motor oil has no place in a gear box..
QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.
-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
FWIW Redline's web site recommends MT-90 and while I haven't used it in a Jeep (I have never had/driven one with a MT) I have had excellent luck with it in other vehicles (VW, Porsche, etc.) Much improved cold shifting etc. I agree with the comments that you don't want to use a GL-5. Just because I've used the Redline and it works, it's pretty much my go-to for manual transmissions; I've used the MTL, MT-90, and even Heavy Shockproof with good results. (the last was in a B-W T10 at the recommendation of a drag racer friend; shifting wasn't quite as slick as with MT-90 but according to him it would handle abuse better.)
"Do not put syncromesh or Syncromax fluids in the AX tranny. Those fluids are for the later NV3550 & NSG 6 speeds. Redline MT-90 or Amsoil MTG, SVG can be used also. The SVG is a GL-5, but being synthetic it will not harm the syncros. Your choice, all 3 are good."
Requires 75w90 GL3 (GL4 is compatible, GL5 is NOT)
Fluids you can use: Redline MT-90, Amsoil MTG
The correct product specified for the AX-15 has changed over the years from
Chrysler so depending on the year of the transmission there are several
options for fluids. According to DaimlerChrysler, the AX-15 should use the Mopar product meeting spec MS9684, part #04897622AA, which is rated as a 75W90 GL-3 lubricant for 1997 and newer AX-15 transmissions. An SAE 75W90 is the same viscosity (fluid thickness) as an SAE 10W40 - see the attached chart. Royal Purple recommends our RP 10W40 API Motor Oil or the XPR 10W40 Racing Oil.
For 1996 and older transmissions Chrysler used to recommend the use of an SAE 75W90 GL-5 gear lube. This would be our RP MaxGear 75W90. You could also use the 10W40 Motor Oil in the older transmissions as well.
I'll probably buy some Redline put that in and call it good then.
For sale: ZJ disc brake backing plates, Skid plates from a '85 blazer/S10.