So I just bought 2 new 66cc motor for my business. I wanted to know why I have had 2 motors before these and neither of them got the full 100-150 Mpg. I usually only get 25-30 if I am lucky. But then again I was using 2 Stoke Universal oil from Wal-Mart. So where can I get 2 Stroke Synthetic Motorcycle Oil and will it help my millage?