DTE Stage-2 diff fluid change questions
Thread Starter
Melting Slicks
Joined: May 2000
Posts: 2,974
Likes: 5
From: CenTex Texas
DTE Stage-2 diff fluid change questions
I bought a DTE Stage-2 w/4.10 gears a few years back. I changed the fluid out right after the "break-in" period as recomended by DTE, but haven't changed it since. I am now going to change the fluid but don't know what fluid to use:
(1) Orginal paper work from DTE called for Redline 75w/90 with a bottle of GM friction modifier.
(2) DTE web site says Redline 75w/140 only (no GM additive).
Anybody with an older DTE Stage-2 diff go from one fluid type to the other? Any problems encountered?
I can't remember but how do you check the diff has enough fluid? Is it with car level fluid should be at bottom of fill-hole? Or is it just use two full quarts?
Thanks!!
(1) Orginal paper work from DTE called for Redline 75w/90 with a bottle of GM friction modifier.
(2) DTE web site says Redline 75w/140 only (no GM additive).
Anybody with an older DTE Stage-2 diff go from one fluid type to the other? Any problems encountered?
I can't remember but how do you check the diff has enough fluid? Is it with car level fluid should be at bottom of fill-hole? Or is it just use two full quarts?
Thanks!!
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Contact Phil at DTE and see what he says. I don't think they changed anything internal to warrant the heavier fluid, it was testing that revealed superior protection. Also, the Redline modifier should be used with their fluid. Best scenario is to just order the fluid from DTE, that's what I do and it is properly pre-mixed as shipped and I found the cost to be about the same if I bought and mixed it myself.
Thread Starter
Melting Slicks
Joined: May 2000
Posts: 2,974
Likes: 5
From: CenTex Texas
I called DTE and talked to some lady that answered the phone. I specificly asked her about what fluid to use with an older DTE stage-2 diff and she told me that Redline 75w/140 is all they recommend using because it already has a friction modifier in it.
So I guess since no one here can provide some first-hand input on the subject i'm going to go ahead and try the Redline 75w/140 option.
So I guess since no one here can provide some first-hand input on the subject i'm going to go ahead and try the Redline 75w/140 option.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
The question is whether you have the heavier clutch pack. If so, the friction modifier requires adjustment over standard Redline 75W-140, which does have some in it but not enough for the DTE clutch packs. Just to be clear, why not shoot Phil a PM or e-mail.
Here is some information: Link
Here is the other link I spoke of in an earlier post: Link 2
Here is some information: Link
Here is the other link I spoke of in an earlier post: Link 2
Last edited by vettenuts; Jul 28, 2010 at 03:18 PM.
