ORIGINAL: HPI_Savage_RC
A lot of people here are terrible at explaining things. '30% Nitro' refers to a fuel that is 30% Nitromethane, with the remainder being Methanol, lubricants, and a small percentage of other additives. When you go to the hobby shop, you'll see that the jugs of fuel are labeled with 'x% Nitro', you'll want to buy 20 or 30%.
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