[ToyotaSupraT78]

i would use amsoil if i could a. find it, and b. if they had the thicker weights im looking for

A. If you cant find it local, hit me up with a PM and we'll send ya some.
B. Why are you using heavier oils?
C. What makes you say that Amsoil doesnt have heavier weights?

I use Amsoil's Turbo Formulated 10W-30 in mine.

Amsoil has 0W-30, 5W-20, 5W-30, 10W-30, 10W-40, 15W-40, 20W-50, and SAE 60 Heavy Weight Racing Oil. Now tell me, what weight is it that you want an they dont have?

Jon