I have a Magnum 180 running on Gas/Glow and the oil content for my fuel is between 8 and 10 % it runs great, if you want to gain power on your gasoline conversion try to mix a 1/3 15% nitro glow fuel and 2/3 gasoline this will give you a 6% oil content fuel then make up the 4% oil needed to bring oil content to 10%.