Hi everyone, new to posting here, but have looked in once in a while.
The 911 guys have been using Thr Brad Penn Racing Oils for a time with good results, and I've started using it just recently.
There is a 30 wt engine breakin in oil with a little higher Zinc content than the other Penn oils. There is a 20w - 50w, A 50w A 70w for Nitro Methane motors, and couple others, they also have gear oils.
Here's there link:
http://www.bradpennracing.com/