Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

AX15-10-30w or gear oil

Thread Tools
 
Search this Thread
 
Old 02-01-2010, 09:28 PM
  #1  
Seasoned Member
Thread Starter
 
88GTBlack's Avatar
 
Join Date: Jan 2010
Location: JERSEY ALL DAY
Posts: 251
Likes: 0
Received 0 Likes on 0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0L
Default AX15-10-30w or gear oil

My gearbox grinds second if i dont granny shift perfectly its annoying if i shift to quick it crunches into gear.

What kind of oil should i change into my trans?
Old 02-02-2010, 12:27 AM
  #2  
Seasoned Member
 
mrmikey32's Avatar
 
Join Date: Dec 2009
Location: Lake in the hills,IL
Posts: 462
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0
Default

for hyundais, and dsm... ive always used redline mt90. id venture to say your syncros are ****ed. i have not looked into whether the mt90 will work, but redline is amazing for the syncro issues you are having. also, im not sure if it works, but gm syncromesh is great.

i have not yet tested these on jeeps, let alone looked into the materials used for the transmissions.
Old 02-02-2010, 12:31 AM
  #3  
Member
 
93xj's Avatar
 
Join Date: Jan 2010
Location: jackson, MI
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts
Year: 1993
Model: Cherokee
Engine: 4.0 L (242 CID
Default

deff syncros u are not going to be happy when they go out for good lol
Old 02-02-2010, 12:33 AM
  #4  
Member
 
BeepBeepImaJeep's Avatar
 
Join Date: Oct 2009
Location: Martinsburg,WV
Posts: 202
Likes: 0
Received 0 Likes on 0 Posts
Year: 1994
Model: Cherokee
Engine: 4.0. H.O. 242 6-Shooter
Default

mine does that also, its not like a loud or aggressive grind its kinda like a light grind, like a churn or something and its only 2nd gear and only like right after i start it, ima change the tranny fluid here soon and see if that does it.
Old 02-02-2010, 12:35 AM
  #5  
Seasoned Member
 
mrmikey32's Avatar
 
Join Date: Dec 2009
Location: Lake in the hills,IL
Posts: 462
Likes: 0
Received 0 Likes on 0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0
Default

Originally Posted by BeepBeepImaJeep
mine does that also, its not like a loud or aggressive grind its kinda like a light grind, like a churn or something and its only 2nd gear and only like right after i start it, ima change the tranny fluid here soon and see if that does it.
ill email redline now. but im telling you guys, redline mt90 does wonders for this same exact issue on hyundais. i actually just asked about this on another forum, only because i have a bunch of it. its not cheap, but it will solve your issue till you can get a new trans(you are going to need one)
Old 02-02-2010, 07:09 AM
  #6  
CF Veteran
 
whowey's Avatar
 
Join Date: Apr 2008
Location: Northern Illinois
Posts: 2,237
Likes: 0
Received 3 Likes on 3 Posts
Year: 90
Model: Cherokee
Engine: 4.0
Default

The grinding/crunching sound actually between first and second is actually not that rare in AX-15s.... especially ones that have been getting the wrong fluid over long periods of time....

Redline MT-90 is a great fluid... it will quiet the noise down, and does not contain the sulfur that destroys your synchros.

I use Amsoil MTF which does exactly the same thing.

But.. if the synchros are far enough gone. There is nothing that is gonna stop the eventual need for them.
Old 02-02-2010, 07:29 AM
  #7  
CF Veteran
 
96Cherokee113's Avatar
 
Join Date: Nov 2009
Location: New Jersey
Posts: 1,261
Likes: 0
Received 0 Likes on 0 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 HO
Default

10W30 motor oil is the Mopar recommendation, but I'd prefer to use a gear oil, but you have to be careful to check that it's yellow metal safe because the synchros are made of brass. Personally, I'm gonna change mine out with Synchromesh because it's cheaper than Redline.
Old 02-02-2010, 09:18 PM
  #8  
Seasoned Member
Thread Starter
 
88GTBlack's Avatar
 
Join Date: Jan 2010
Location: JERSEY ALL DAY
Posts: 251
Likes: 0
Received 0 Likes on 0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0L
Default

so its probably not a good idea to pump 10w-30 in my ax15 that already has synco problems and your saying i should run gear oil instead like syncromesh or something good like that.

What weight should I go with?
Old 02-02-2010, 09:35 PM
  #9  
CF Veteran
 
96Cherokee113's Avatar
 
Join Date: Nov 2009
Location: New Jersey
Posts: 1,261
Likes: 0
Received 0 Likes on 0 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 HO
Default

If your synchros are screwed, DO NOT use motor oil as there are no additives to preserve the life of them. Go with Pennzoil Synchromesh or you can go high class with Royal Purple Synchromax which is $13 a quart. They don't make different weights, though. Either of those should help your synchros last a little longer and are yellow metal safe. I'm changing my fluid tomorrow with Synchromesh, so I'll let you know how it goes. It also wouldn't hurt to go with Amsoil or Redline MT90. It's all up to you, but I just wouldn't use 10W30.
Old 02-02-2010, 10:30 PM
  #10  
Member
 
A_Jeepr's Avatar
 
Join Date: Jan 2010
Location: Virginia
Posts: 245
Likes: 0
Received 1 Like on 1 Post
Year: 1989
Model: Cherokee
Engine: 4.0
Default

http://www.amaliestore.com/proddetai...d=160-73166-56

this is Amalie Elixir Full Synthetic GL5. I have done lots of research on it. I have called the tech line for the company. What they said is this:

"It has sulfur in it but its a polymer base sulfur. There are several different types of sulfur and this gear oil will NOT damage AX-15 syncos" (he knew all about the brass syncros in the AX-15. I asked him)

Amalie backs there oils 100%. I sell a lot of Amalie oil at work every day! Good stuff, no complaints EVER. Only happy customers.

I run it in my Ax-15. It makes 5th gear quiet, and shifts so smooth.

Yea your syncros are on the way out, not much you can do except replace them.

Amalie Elixir Full Synthetic GL-5 75W-90 is the ultimate gear oil system meeting all OEM performance targets and provides maximum protection for all gear sets as well as helping to improve fuel economy while promoting longer gear life. Amalie Elixir Full Synthetic GL-5 75W90 is a 100% synthetic base oil product coupled with a robust additive system and an improved viscosity modifier to give you a high viscosity index, low pour-point, synthetic gear oil providing reduced friction, fuel savings, better low temperature startup protection and longer life than most conventional gear oils. This superior high performance gear oil is formulated to meet the requirements of the American Petroleum Institute's (API) Service Classification GL-5 and MT-1; MIL-PRF-2105E; SAE J-2360: Dana Corp. (including Eaton Axles); Eaton 750,000 mile warranty coverage and 500,000 mile oil drain intervals capabilities; General Electric D 50E9C; (P&H) 474; Mack Truck GO-J Plus; ArvinMeritor (including former Rockwell axels) and Rockwell International 0-76-E.

Last edited by A_Jeepr; 02-02-2010 at 10:34 PM. Reason: adding product info
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
denverXJ
Cherokee Chat
8
10-23-2018 04:36 PM
scoutmstr
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
17
04-06-2016 11:14 AM
MidwestNick
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
02-28-2016 02:05 AM
Blackxj51
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
22
09-13-2015 06:06 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: AX15-10-30w or gear oil



All times are GMT -5. The time now is 03:29 AM.