Just wondering which brand fluids you guys us for your manual transmission and such. thanks in advance

 

Redline all the way

MT-90 in the trans
75W90 (with the LSD friction modifier) in the rear diff

I absolutely love it.

People have also had great luck with Royal Purple.

The search button is your friend

 

redline

 

Royal Purple...but I dont know what to do anymore...

 

First went to RP Maxgear in the gearbox and transmission. Then went to RP lightweight in the gearbox and their 75W90 in the diff. I hated it in the gearbox and have changed back to RP Maxgear front and back after a month and a half. Gearbox stiffness is slowly disappearing. Gearbox started out fine but after 2 track days it was horrid. Interesting thing is that it came out of the gearbox looking just fine.

 

I used Mobil 1 (SAE 75W 90 GL-5) for both tranny and differential. So far so good. Can't find the Redline here :-( Hope I am not doing the wrong thing... the grade is based on owner's manual though.