I have had good luck with the Norvel25 fuel, which I would run all the time except for the high price. I normaly run 30% Hobbytown Helimix as its only $12 a gallon. I have run a variety of 30% nitro fuels and found they have all run great in the Norvel Vmax6. I have about 10 gallons of fuel through that engine alltogether over some 5 years.

This brings up another question. Which engine are you running? I would like to see some feedback from guys with the Vmax7. I am considering going that route.

Spiro