Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: bdron on October 14, 2011, 11:10:09 AM

Title: Anyone really know what fluid to put into a T5 transmission from a 85 cj7?
Post by: bdron on October 14, 2011, 11:10:09 AM

I have  been trying to find out what fluid to replace the oil in my T5 for a while now and it seems like every website I check they all have a different story.
Please can someone who actually knows what it is let me know.
Thank you in advance.

Title: Re: Anyone really know what fluid to put into a T5 transmission from a 85 cj7?
Post by: tubby on October 14, 2011, 03:22:06 PM

UGgHHH !

I've personally been down this road before with the same year Jeep. My older brother had a CJ ,and when it came time to change the oil in the T-5 it was very confusing as the original owner put in gear oil because his " mechanic" buddy told him to do it. The owners manual we had said to use a special oil sold from AMC. That oil was discontinued a long time ago. I believe it was 1983 that there was a change from AMC to go from gear oil to ATF and that's why there is so much confusion. I think it was the change in blocking rings to a fiber type from brass.

We put in ATF ( Dextron 3 or Mercon) and finally switched to Redline synthetic ATF when it became available . The CJ still has the original tranny and my brother has been using ATF since 1989. No grinding or noises and it's well over  300 000km.

Title: Re: Anyone really know what fluid to put into a T5 transmission from a 85 cj7?
Post by: Vinman on October 14, 2011, 03:27:37 PM

My old S10 had the T5 and it used ATF as well

Title: Re: Anyone really know what fluid to put into a T5 transmission from a 85 cj7?
Post by: bdron on October 15, 2011, 08:08:40 PM

Thabk you for your help.