I looked into this some about a year ago. If I remember right, the Polyol Ester formulation of something like "Red Line Alcohol Fuel Two-Cycle Premix" oil may offer some performance advantages over the Polyalkylene Glycol formulation I want to say Klotz uses. Again, it's been a year since I last looked into this (and I don't have my notes with me right now), so I might be a little fuzzy on what I learned. My advise: find the MSDS and SDS for each oil, look at what the main constituent is, and confirm if that constituent offers the performance benefits you're after.