it's called "clear" gas around here. there's a website that tracks places to buy it in all 50 states: https://www.pure-gas.org https://www.pure-gas.org - but I

it's called "clear" gas around here. there's a website that tracks places to buy it in all 50 states: https://www.pure-gas.org https://www.pure-gas.org - but I've noticed that it doesn't track every location and is often wrong about prices, at least in my area. I've never seen "REC-90" and had never heard of it before your posting. clear gas in my area is 92 octane, with up to 110 available in select locations. most everyone I know who drives a performance vehicle, or a motorcycle can tell you where their closest gas station that sells clear gas is. > I doubt you have performed the experiment you described, for the simple reason that it's hard to find gasoline that's not mixed with ethanol. I've performed it many times over the last 17 years I've owned my current car. the results are always the same: 25% better gas mileage with the clear gas. I keep track of my mpg, and am able to quickly see any difference between gasoline grades. I typically drive in my car's "power band", staying between 5000 and 6700 RPM.