mobil 1 10 w 30

I use whatever 5w30 full synthetic is on sale. I change my oil once a year, and being a weekend toy, I only put on 2-3k per year.

Mobil 1 96989 0W-40 since that is what is used in the Porsche and I can't see having 2 different types around. And yes, it is a full synthetic.

I go with Rotella T6 5w40

Engine: Amsoil 5w/30
Tranny: Amsoil 75/90 GL4
Diff: Amsoil 75/90 GL5
I bought my 2001 LS 5-speed with 82K miles on it and dino oil/lube in it. I switched to full synthetic immediately and it burns no oil and shifts better than when I got it.

Shell rotella or mostly any 5w-30 oil.

I think all of the brand name full synthetic oils are good. The only critical point is making sure GL-4 goes into the transmission and GL-5 goes into the differential.