OK OK, Enough is enough on the MoGas deal. Everyone seams to be forgetting that you MUST follow all of the STC requirements which include using SUPER unleaded gas. That is not that much cheeper than AvGas, around here it's only about $.50 per gallon. You also MUST test the MoGas for alcohol. Who is actually doing that? For EVERY purchase? I know a guy who's so proud of the $ he saves buying MoGas, I then found out he buys it at the cheapest "brand-X" station around. I'd doubt that he's even getting 91 octane. What about the stability of MoGas (especially for those storring large quanities). I've had many tanks of MoGas "go-bad" in cars, boats, motorcycles but never a load of AvGas. There are MANY differences between 100LL and MoGas that go beyond just the octane. Oh, and let's not forget that the differences vary BY DESIGN for the seasons. The biggest reason AvGas costs more than MoGas is quality control. There MUST be a totally dedicated supply chain that extends from the refinery all the way to your airplane. The fuel CANNOT be pumped via a pipeline or even carried in a truck that has ever had MoGas before. Can your local Brand-X station say the same about their "super" unleaded? Oh, and do I even start about varpor-lock problems? I'll gladly pay the extra $7.00 an hour for the extra security provided by AvGas... (Besides, MoGas STINKS!)