Rotary Car Club - View Single Post - What Diff and Transmission Fluid for Racing

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.

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.