80/90 is what I use but then again there will be peace in the middle east before everyone agrees on what fluids to use on there De Lorean. Just out of curiosity why are you changing it? Matthew Stits Vin 0789 --- In dmcnews@xxxxxxxxxxxxxxx, "Adam <acprice1@xxxx>" <acprice1@xxxx> wrote: > Hello, I have an automatic and I want to change the final drive > fluid. The technical information manual that i have says to use GL- 5, > but it doesnt give a weight. What weight should I use for the final > drive? Is 80-90 okay? Thanks. > > Adam 16683