Hello!
In a week i will install Wavetrac lsd + Os-Gike STR Single so i want to replace the oil gear since i will have to open the transmission /gear box.
Suggestions?
Should i go for the OEM? Castrol? Motul?
Also because you dont change gear oil often i dont care if it would cost 20-50-200. Im just searching for the highest quality gear oil that will work perfect with my setup.

Thank you for your time.!

 

Several people in these forums including myself use Redline MTL for manual transmission fluid. Relatively inexpensive per bottle and very high quality fluid. It is slightly thinner than OEM spec fluid, but that's not an issue unless you plan on taking the car to the track. I believe OEM is 75W-85 or 75W-90, and the MTL is 75W-80.

What Wavetrack DOES NOT recommend however is Redline Shockproof gear oil. It has suspended particles that may prematurely wear out the clutch pack inside the LSD. Avoid any gear oils like this that are milky in appearance.

 

Not really many options
You should read this: http://www.wavetrac.net/technical.htm
Unless you are tracking, do the Motul 75w90

 

Thnak you for your answers!

Actually my tuner and my mechanic said that it would be better go for the OEM that performs super good.
However i'm searching now for the motul 300(75w90 GL4/5) and competition(75W 140 GL5)...+Castrol syntrans Transaxle 75W90 (GL4)

PS: I wont track the car more than...3-4 times per year and this if im lucky too! I hope that i might be able to do that for much more lets say 7-10 but i dont believe that this is a realistic scenario..but.. Car is not daily and it will be only for fun-fast road use 1-2 times per week.!

:(((