Gas Question, What effect?

Once the octane requirement of an engine is met adding more octane has no power advantage. Octane is not a power adder in itself. It will though, allow you to add more compression, boost, advance curve etc. which will add power. The octane rating of a fuel is nothing more than it's ability to deter detonation.

Plus there is lot more to a race fuel than just the octane rating. There can be multiple types of 100 octane race fuels from the same manufacturer. Some race fuels have a slower burn rate than others so if you put one of these slow burn rate fuels in your car without the components to support the slower burn fuel, your car could actually have less power than with the pump gas.


Chuck