What Transmission Fluid/Gear oil do you use?

[dsmkid]

Im planning on doing a flush today on the gvr4 I just got and just wondering what you all would suggest. What do you use and have good luck with? I am experiencing some 2nd gear grinds at high rpm and its hard to get into 2nd at 7k at the track. I know the culprit is probly not a fluid problem but hopefully it can help it a bit. Keep in mind I live in Colorado and we do get Cold winters, sub freezing. This will be what I use all this winter. Thanks in advance!

 

[Brunoboy]

MT-90 x3 in the trans and Heavy Duty Shock Proof in the X-case and Rear Diff.

 

[Launch]

Only motul in my high tq trans, wax kills. shockproof in transfer and rear

 

[Terry Posten]

Mitsubishi Diaqueen in the transmission and Redline Heavy Duty Shockproof.

 

[Dark_Horse]

Since you live in Colorado, I wouldn't run heavy shockproof in the winter. Heavy doesn't like temps below 45 degrees.

 

[cupajoe]

Mitsubishi Diaqueen in the transmission and Heavy shockproof in Tcase/rear diff. But I'm going to switch my transmission fluid to MT-90(2/3) and MTL.(1/3)

 

[GSX_TC]

BG syncro shift

 

[dsmkid]

What about weights?

 

[GSX_TC]

75/90 seems to be a tried and true for the trans atleast

 

[turbofonz]

I'd run straight MT90 for now.

When spring comes around and you start beating on it a little more toss in some shockproof for some...shock proofing.

 

[Terry Posten]

You don't want to put shockproof in the transmission. The syncros don't like it.

 

[GSX_TC]

shockproof is best in the T-case and rear diff right?

 

[Terry Posten]

Yes, 100%. But if you drive in cold weather, may want to run a bit thinner when temps drop below 40.

 

[GSX_TC]

glad i'll be in one of the hottest dam places, Houston Tx.

 

[boostedinaz]

Here is a thread discussing this exact topic.

Tranny fluid mix