I've been using MT-90 for 5 years & see no reson to change

By no means do I take it easy on the car, when it gets pulled out, it gets pulled out to be driven & everything is in perfect shape

 

oops ... read up on the Evo IX and found it. One more reason for me *not* to own an Evo IX. jk

Probably the other reason why we see a few shops putting in ATF in the x-fer cases.



~j.

 

I have heard of a few shops filling the case with ATF as well

In case anyone is wondering...Mobil 1 Synthetic ATF(Multi-vehicle Formula) Meets the ATF-SP111 Spec for the ACD.

 

Diaqueen is what you run Josh? I was looking into some of the Amsoil severe gear oil for the diff and case, since I am hoping to take it to the track quite a bit this year.

 

Yeah, I use Diaqueen in the Case & Rear diff & they're still alive.

I can't really comment on Amsoil, never used the stuff..

 

Well i figured i'd try it out and see how it goes. Also, It wasn't that the Redline MT-90 was bad just some said that when it was cold the trans didn't shift as smooth.

 

It's a bit notchy when cold..never really bothered me though.

 

most fluid will be notchy when cold.

 

How much fluid is needed in the trans, diff, and the case?

 

tcase and rear diff dont even take a qt each, but you gotta buy diaqueen by the gallon and its 50-60$

just a touch over 3 qts in the trans. I did a redline mix in mine, 2 qt MT90 and 2 qt MTF mixed together

I think i have a 1/2 gallon of diaqueen id hook someone up on, ill never use it again lol

 

I have some diaqueen, but think i am going to go with some Amsoil to try it out.

 

Just make sure its setup for LSD, thats why i used diaqeen it was lsd oil

 

SEVERE GEAR® Synthetic Extreme Pressure (EP) Lubricant 75W-90
Recommended for use in differentials, manual transmissions and other gear applications requiring any of the following specifications: API GL-5, MT-1, MIL-PRF-2105E, Dana SHAES 234 (Formerly Eaton PS-037), Mack GO-J, or the differential (hypoid) gear oil specifications from all domestic and foreign manufacturers such as GM, Ford and Daimler Chrysler. Can also be used in axles where an API GL-4 lubricant is recommended.

AMSOIL SEVERE GEAR® is compatible with most limited slip differentials. If limited slip differential chatter occurs, add AMSOIL Slip-Lock™ friction modifier additive.

 

sounds like you are good to go

 

I thought so, they also offer a 75W-110 as well. I figured i'll try it out, I can always go back to Diaqueen if i don't like it. I am just changing all the fluids on the care so I'll just try all the products ha