2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

which trans/diff oil should i use?

Thread Tools
 
Search this Thread
 
Old 04-18-11 | 10:52 PM
  #1  
erknee916's Avatar
Thread Starter
Full Member

iTrader: (1)
 
Joined: Aug 2010
Posts: 195
Likes: 0
From: Sacramento
CA which trans/diff oil should i use?

alright so im changing my shifter bushings, and theres a gunk everywhere. so after changing them which oil should i put in? and how much? also can i use the same oil iput in the shifter for the trans/diff?
Old 04-20-11 | 03:35 AM
  #2  
ericgrau's Avatar
Clean.
iTrader: (1)
 
Joined: Mar 2005
Posts: 2,521
Likes: 3
From: Huntington Beach, CA
75W-90 IIRC, or whatever the FSM (check the FAQ) or owner's manual says. Sulphur free (no egg smell) GL-4 in the tranny and GL-5 in the differential, or even GL-4. GL-5 might be tougher stuff but the sulphur in most GL-5s makes the transmission synchros wear out twice as fast.

Any kind will do but if you want something high quality then try Mobil 1. For racing use there's also Redline, Royal Purple and I think AMS, all for faster shifts. But I hear it's not good to engage that fast on a daily driver, I dunno though. They usually sell "gear oil" for the differential which isn't always synchro safe and another oil for the tranny. Some use the same oil for both.
Old 04-20-11 | 12:37 PM
  #3  
3vil's Avatar
Mazda Misfit

iTrader: (4)
 
Joined: Feb 2010
Posts: 574
Likes: 1
From: Springtuckey
i put redline's lightweight shock proof in my trans and i couldn't be happier. and this is a daily driver. it smoothed out some roughness i had in the mornings when the outside temps were low.
Old 04-21-11 | 06:56 AM
  #4  
erknee916's Avatar
Thread Starter
Full Member

iTrader: (1)
 
Joined: Aug 2010
Posts: 195
Likes: 0
From: Sacramento
thanks much. now i gotta look for the fluids. stupid kragen only has their generic brand
Old 04-22-11 | 11:37 PM
  #5  
Evil Aviator's Avatar
Rotorhead
 
Joined: Feb 2001
Posts: 9,136
Likes: 39
From: Charlottesville, Virginia, USA
Originally Posted by ericgrau
Any kind will do but if you want something high quality then try Mobil 1.
Mobil 1 is GL-5, which will eat the transmission synchros.
http://www.mobiloil.com/USA-English/...Gear_Lube.aspx

Also, there is evidence that Mobil 1 now uses Group III base stock (with a little bit of PAOs mixed in), which would make it one of the lower quality synthetic oils on the market. When directly asked about this, Mobil avoids answering the question, which causes me to believe the Group III rumors.
http://www.mobiloil.com/USA-English/...Base_Oils.aspx

Personally, I like Red Line MT-90 in the manual transmission and Red Line 75W90 in the differential. Most other synthetic oils will also work well, but Red Line contains more of the (better in my opinion) Group-V ester base stock, yet it costs about the same or less than many of the oils that mostly use the Group IV PAO base stock or the inferior Group III base stock.

Originally Posted by erknee916
thanks much. now i gotta look for the fluids. stupid kragen only has their generic brand
You can order on the internet from places like Jeg's, Summit Racing, Racer Parts Wholesale, etc.
Old 04-23-11 | 10:51 AM
  #6  
misterstyx69's Avatar
Retired Moderator, RIP
iTrader: (142)
 
Joined: Sep 2005
Posts: 25,581
Likes: 133
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
I run Redline in my TII..excellent stuff in my opinion.
My N/A however is just Storebrand(Canadian Tire) 75w-90 extreme pressure gear oil..works good for being a cheap oil.
Old 04-23-11 | 11:13 PM
  #7  
Zero10's Avatar
Full Member

 
Joined: Dec 2003
Posts: 231
Likes: 1
From: Calgary, Alberta
I just picked up some MT-90 for the transmission and heavy shockproof for the rear diff.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stickmantijuana
3rd Generation Specific (1993-2002)
13
01-09-18 12:19 PM
troym55
3rd Generation Specific (1993-2002)
23
05-25-16 01:42 PM
tiger18
3rd Generation Specific (1993-2002)
9
09-03-15 09:27 PM
rotor_veux
2nd Generation Specific (1986-1992)
5
09-03-15 08:10 PM



Quick Reply: which trans/diff oil should i use?



All times are GMT -5. The time now is 12:46 PM.