Which fuel do YOU use

[rick996]

Originally Posted by Bluevitz-rs

I think you logic is a little flawed. What if I'm using 110 octane race gas? It's 110% less likely to pre-detonate?

No, It can be compressed 110% before it detonates by compression. 87 octane can be compressed only 87% before it detonates by compression.

Ethanol has less BTUs (energy) per gallon than gas so it's less efficient .

Here's a chart of energy values for different gas formulations: http://en.wikipedia.org/wiki/Gasoline_gallon_equivalent