Pros: Potential for excellent fuel economy, run on existing gasoline ... and more than 8 million cars already on the road can use E85. Cons: Twenty-five percent lower fuel economy on E85 than ...

we test the power differences between 118-octane race gas and Rockett Brand E85 ethanol-blended fuel. There’s a lot more to just the horsepower curve, though, as we test Holley’s out-of-the ...

Flex fuel is what's known as an alternative fuel, of which there are many, but flex fuel is largely unique in that it works ...