Folks: I have just about read every thread, etc on Manual Transmission Lubricants, etc for the SS on this forum. I cannot find the AC Delco Man. Trans. Fluid 75W-90, GL-3 (10-4030) anywhere to be purchased. Not only that, but I cannot find any GL-3 manual transmission fluid other than Polaris. Has everyone gone to Polaris trans. fluid now when they change their transmission fluid or is there another GL-3 product I am missing somewhere?
I did see the SynPower TDL that states GL4-5 on the bottle but it also states it can be used for GL3 in the description. However, I am not convinced. Again, what are you using now?