Yes, I do mix my own fuel. Fuel mix consists of: 10% Coolpower oil, 20-25% Nitro, 65-70% methynol. As costs go, I pay $85Aust for 5litres of Nitro; $27.50Aust for 25litres of methynol and $35Aust for 5litres of coolpower oil. So, for $147.50 I can make 33.5litres of 20% buggy fuel. 4litres of trinity monster horsepower 20% nitro fuel at my local hobby shop retails for $80Aust - so for 33litres of monster horsepower it would cost me $670Aust. I suggest if you can mix your own fuel - do so, if not maybe your friend could do you a deal. The Qld state title are on in Rockhampton on the 8/9/10 August. Hope to see you there.