What Diff and Transmission Fluid for Racing

magpiemini · 05-02-2012, 11:30 AM

Again, this is LeMons endurance racing. What viscosity, type and brand do you recommend for racing a 1984 RX7 GSL-SE in the transmission and differential, please check all that apply in the poll, and/or post a reply if you race or autocross.

For type I mean GL4, GL5, synthetic, non-synthetic, or blend

You guys have been a tremendous help in my Rotary education thus far, thanks.

cewrx7r1 · 08-23-2012, 10:36 PM

Since nobody replied I will give my non racing experince advice.

For the diff use Amsoil Sever Gear 75W-110 or 75W-140.
I use their 75W-110 because I live in Houston and make about 400 whp.
Morepower and heat requires a heavier oil unless you add oil coolers and can keep the oil temps down.
Same applies to the trans.

http://ww2.amsoil.com/shop/by-product/gear-lube/

For the trans Red Line 75W90NS or Pettit's Revomax Powerblend semi-syn 75W90.

rxspeed7 · 08-23-2012, 10:42 PM

I've always used Mystik jt-7 80w90. This stuff is aboslutely the best drivetrain fluid i've ever used.

http://docs.mystiklubes.com/msds_pi/20008.pdf

View Poll Results: What do you recommend for racing?
Valvoline	0	0%
Redline	0	0%
Other Brand	0	0%
GL4	0	0%
GL5	0	0%
Synthetic	0	0%
Non-Synthetic	0	0%
Synthetic Blend	0	0%
75w	0	0%
90w	0	0%
85-140w	0	0%
Diffferent for Transmission and Differential	0	0%
Multiple Choice Poll. Voters: 0. You may not vote on this poll

05-02-2012, 11:30 AM	#1
magpiemini Rotary Fan in Training Join Date: Mar 2012 Location: Escondido, Ca Posts: 75 Rep Power: 14	What Diff and Transmission Fluid for Racing Again, this is LeMons endurance racing. What viscosity, type and brand do you recommend for racing a 1984 RX7 GSL-SE in the transmission and differential, please check all that apply in the poll, and/or post a reply if you race or autocross. For type I mean GL4, GL5, synthetic, non-synthetic, or blend You guys have been a tremendous help in my Rotary education thus far, thanks. __________________ 1984 RX7 GSL-SE Building for the 24 Hours Of Lemons Last edited by magpiemini; 05-02-2012 at 11:35 AM.

08-23-2012, 10:36 PM	#2
cewrx7r1 The Judge Join Date: Feb 2008 Posts: 196 Rep Power: 18	Since nobody replied I will give my non racing experince advice. For the diff use Amsoil Sever Gear 75W-110 or 75W-140. I use their 75W-110 because I live in Houston and make about 400 whp. Morepower and heat requires a heavier oil unless you add oil coolers and can keep the oil temps down. Same applies to the trans. http://ww2.amsoil.com/shop/by-product/gear-lube/ For the trans Red Line 75W90NS or Pettit's Revomax Powerblend semi-syn 75W90.