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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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ATF oil in T5? LOOK!!

  • Thread starter Thread starter sociopath5.0
  • Start date Start date Apr 17, 2005

sociopath5.0

New Member
Jul 7, 2004
155
0
0
somewhere near Louisville, KY
Apr 17, 2005
#1
  • Apr 17, 2005
  • #1
I was searching the forums looking for a good how-to on engine bay cleanup (wire relocating, battery relocated etc.) and saw a link to moderndriveline.com and their T5 torque/gearing specs page. They also have a section on T5 history. Pretty interesting.

What really caught my attention was that they recommend ATF oil in the T5 World Class in our cars (read: any T5 after 1985 is a "World Class"), NOT Redline MTL or heavy gear oil. Is this right? I was about to drain and replace the tranny fluid anyway, I just want to make sure it's done right. I have not had a chance to check the owner's manual because it is in the car, and the car is not here. What is the right stuff?

Here's the link: http://www.moderndriveline.com/Technical_Bits/t5_history.htm
 

davins130

New Member
May 21, 2004
424
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0
Apr 17, 2005
#2
  • Apr 17, 2005
  • #2
gm syncromesh
 

OrangeMustangGt

Founding Member
Mar 7, 2002
1,976
0
36
Cape Cod, MA
Apr 17, 2005
#3
  • Apr 17, 2005
  • #3
yes what you read is correct. T-5's are so strong and high-tech they need atf because it is a high-tech smart oil opposed to heavy, stupid oil
 

davins130

New Member
May 21, 2004
424
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0
Apr 17, 2005
#4
  • Apr 17, 2005
  • #4
you only want to put in smart oil, not stupid oil
 

super302

I'd do anything for free Bapples
May 29, 2004
2,878
1
0
Davenport, IA
Apr 17, 2005
#5
  • Apr 17, 2005
  • #5
davins130 said:
gm syncromesh
Click to expand...
 

RIO5.0

15 Year Member
Feb 16, 2001
6,892
8
128
N.H.
Apr 17, 2005
#6
  • Apr 17, 2005
  • #6
I like to run Ford tranny and dif fluids...I dont get confused this way...
 
N

Nobody

Founding Member
May 9, 2000
2,515
0
0
Kenmore, WA
Apr 17, 2005
#7
  • Apr 17, 2005
  • #7
GreenMustangGt said:
yes what you read is correct. T-5's are so strong and high-tech they need atf because it is a high-tech smart oil opposed to heavy, stupid oil
Click to expand...

Wooo that's funny!!!

BTW - GM synchromesh is a brand of ATF. Put it in your WC T-5.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Apr 17, 2005
#8
  • Apr 17, 2005
  • #8
I am not a fan of the syncromesh in WC T'5's ( and i am in the minority).

the WC T5's have needle bearings - gear oil is too thick to lubricate. older and other application T5's that use steel synchros can use gear oil.
 

Scot_94GT

Founding Member
Jun 20, 2002
262
0
0
Spring Lake Park, MN
Apr 17, 2005
#9
  • Apr 17, 2005
  • #9
It says in the owner's manual to use ATF. Synchromesh is a thicker gear oil.
 

JJ95GTID

Active Member
Sep 22, 2003
1,141
4
49
Phoenix, AZ
Apr 18, 2005
#10
  • Apr 18, 2005
  • #10
http://www.redlineoil.com/whitePaper/13.pdf

This is some good reading. I use RedLine MTL in my T5. I also emailed Tony @ Astroperformance. His reply stated that the synthetic MTL is okay to use on a T5 that is broken-in. For new or freshly rebuilt T5s he said to first use an ATF for the brake-in period. I run my T5 hard and have no problems running MTL.
 
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