Differences between Car and Airplane Fuel
Sig fuels are 50/50 castor/syn mix and are 20% oil.
Not all airplane fuels are 18%.
Coolpower/Omega are 17%
Omega's pattern fuel is 20/20
Wildcat Fuel is 16% oil
Wilcat Premium Pro is 18% oil
Sig is 20% oil
etc..etc..