[RayToday]

Sorry if this is a repost...

Anyway, I found this link and blurb at a GTO forum. Pretty good read. However, I wish they threw Motul into the mix though.

" For those interested in a comprehensive comparison of the major gear lubes on the market, AMSOIL just released this today. While this was a study commissioned by AMSOIL, it is still a very interesting read.

Gear lubes tested:
Synthetics:
AMSOIL Severe Gear 75W-90
Castrol SYNTEC 75W-90
GM Synthetic Axle 75W-90
Lucas 75/90 Synthetic
Mobil 1 Synthetic 75W-90
Mopar Synthetic 75W-90 with Mopar LS additive
Pennzoil Synthetic 75W-90
Red Line Synthetic 75W-90
Royal Purple Max-Gear 75W-90
Torco SGO Synthetic 75W-90 with Torco Type G LS additive
Valvoline SynPower 75W-90

Petroleum Candidates
Castrol Hypoy C 80W-90
Pennzoil Gearplus 80W-90
Valvoline High Performance 80W-90 "

http://www.amsoil.com/lit/g2457.pdf