I never really bought into the Brad Penn hype and always used the VR1. I bought some recently and ran it in my late model car that doesn't have a cat on it because I found out a buddy's job sells it. For some reason parts stores never stock the 10W30 Valvoline.

Anyway, I was going to run it in my Plymouth for my fresh engine again for the convenience of being available in 10W30 locally, but I stumbled across this. I'll stick with the VR1 for now.

http://540ratblog.wordpress.com/

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street