My friend has run that on his New VG, almost a gallon of it. Yet to see what it does later...

Suppose they were over-leaning it because the fuel runs cooler? Even when slightly fat it seems to make good power. Thats just my opinion, or observation. It is said you will run fat when making the switch and the temps are cooler...perhaps they engines were ran a bit lean un-intentionally?

there isnt a reason a fuel should ruin an engine...seeing as how its 11% oil and offers super good protection.