You can buy it from Tower with all discounts and freight and special charges and etc. etc. etc. it works out to about $25/gallon. But the 15% for me has be about $20/gallon. I also think you use slightly less fuel with 30%, at least I think I do. To me I rationalize it to be $3-$4/gallon more to run 30%. To me, that amounts to less than $75/year for sure. Probably more like $50. To me it's worth it. You will notice a major difference in power, not only peak power but also in crispness of transition. Way better.

Another thing, some people have complained about the Saito throwing the rear main bearing. The 30% fuel (at least if you use Cool Power Heli) has 22% oil. The 15% has 18% oil. (HUH????) Anyways, the heli fuel has a higher oil content which I believe give better bearing life. Also, with the heli fuel you don't need to run any after run oil. In fact they recommend against it. Another savings.

Thanks
Barry