Fly boy yea i heard from Al he said the powermaster is great fuel it has been mixed and blended especially for the DZ my problem is the cost do you know what the price is per gallon or by the case with shipping charges thats the killer the shipping costs because it has to be labled hazerous . I would like to try some right now i am paying 22.95 for the cool power Heli 30% from my local hobby shop. The ys goes thru fuel like crazy.