I did ask about this before and I got conflicting answers. I'm going to put Redline in the tranny on my 5 Speed V8Q but what weight? One suggestion was MTL 75w-90 and another was MT-90. As far as I know, the oil in there now is nothing special. I also belive that I need 3 quarts, right? Thanks /Peter 91 V8Q 5 speed.