Gear Oil? (I know)

[Gray Ghost GT]

Red Line Oil Synthetic 75W90 Gear Oil with no friction modifier (I'm running a Torsen T2R)

 

[roddy]

Amsoil 75W140 oil, with a tube of their slip lock additive.

 

[Black Baby II]

Shock Proof Red Line FTW !!!!

I tried several, including RP, with and without additive. The Red Line IMO works the best for my application. Check em out !

http://www.redlineoil.com/product.aspx?pid=44&pcid=4

 

[Chris8835]

I'm running Mobil 1 75W-90