There are many similarities in race fuel and the standard fuel you purchase at the gas station pump. Race fuel contains more additives to boost the octane level such as extra ethanol, methanol, and lead in some cases. Race fuels are made for high-performance engines and not for your everyday vehicle.

The largest difference between the regular fuel we use on a daily basis and race fuel is the octane level. The gasoline at a gas station ranges from 87 to 93 octane racing fuels range from 100 to 120 octane. Since most high performance engines use higher Compression, more timing advance and more boost the higher number of additives are needed. Different fuels have different energy contents, Consumption Rates, desirable Air/Fuel Ratios, and detonation resistance which octane boosters and other additives you pickup at your local parts house will not be able to reach the true octane levels you need for that high performance engine. 

In short, before purchasing anytype of race fuel we highly suggest you speak with your mechanic or engine builder about what best works for not only your engine setup but your fuel setup to avoid destruction of your engine. Below is a breakdown of key indicators you should know before making your next fuel purchase.