[M.D. Holloway]

RickM - why in Gods name did you not call me? I am hurt! A tear is welling up in the corner of my eye the size of a cow turd!





OK - I'm better now. I forgive you. Now then, lesson 1= viscosity 101

SAE is the Society of Automotive Engineers. At sometime in the past they felt like dictating the viscosity range of oil for auto applications. Because we all drive, the classifacations stuck.

Now then, gear oil viscosity reccomendations are based on a bunch of factors such as speed, pitch diameter, torque, expected operating temp, even the very metal that is used. That being said, yu have two differnt viscosity requirements. An SAE 20 (which is a crankcase oil class) is in the range of an ISO 46 to a ISO 68. The SAE 90 (which is a true SAE gear oil class) is an ISO 150, ISO 220 or ISO 320. Pretty *****'n confusing I know. Makes a guy wonder which oil he is suppoesd to use! To make matter worse, the AGMA (American Gear Manufatures Association) has their on designations which is your #2 and #3 question.

Don't worry about anything. Send me a PM and let me know the amount of oil you need for each and I will send you some gratas!

(can't beat that price can ya!)