Thanks for the input, guys
Question:
Why don't people use the recommended 80W90 oil? Is it because people like Redline and Redline doesn't offer that viscosity, or is there another reason?
Did a quick google search on synthetic GL5 80W90 gear oils and found a few other alternatives:
Mobilube HD Plus 80W-90 Gear Lubricant
http://www.wolfoil.com/update/docume...ion/2312ce.pdf
Some details on different gear and trans oils here
http://www.widman.biz/uploads/Transaxle_oil.pdf
Suggests a GL6 might be even better? I will search for one...
Here we go -- what about this?
http://www.torcousa.com/technology/SGO.pdf
Castrol Australia - Manual Transmission Fluid
A paper by Amsoil people might find of interest (not independent, obviously, but still informative)
http://www.synthetic-oil-tech.com/Ge...te%20Paper.pdf\
Thoughts?