I kinda think the idea of racing fuel is a bit of a myth. Sure, in actual modified race cars, it's required, but that is probably due to the higher compression ratios in their engines. All Octane is, is a hydrocarbon that will not auto combust at higher compression. It is related to Butane, Propane, Methane, etc. So, unless you have modified the compression ratio of the Crossfire engine, I doubt that 100 Octane will do anything that 93 or 91 Octane won't do.