Gasoline with up to ten percent ethanol have been approved for public sale in the US, and the ethanol industry has been pushing to increase the maximum allowed blend to 15 percent. Or 12 percent until the EPA can figure out if E15 damages engines. But with automakers turning against the e15 push, fears about E10-related engine damage (which primarily began with boat and small engine operators) are being more widely heard. So why is E10 allowed if it damages engines? For one thing, trailerboats.com points out that
Yamaha warns that due to the fungible nature of fuels in transit from refinery to service station, some E10 fuels may actually get an extra dose of ethanol
In other words, E10 may be safe but you may not actually be getting E10. But more importantly, the market is answering the call of consumers. Over at pure-gas.org, a site dedicated to connecting Americans with stations offering ethanol-free gasoline, the number of registered “pure gas” pumps has skyrocketed since June of last year. But, warns the site’s founder (a BMW motorcycle enthusiast),
We buy [ethanol-free gas] because we want to fuel our vehicles with it. If you want to save money on gas, this site is of no use to you – it will NOT have gasoline prices on it. They vary from day to day and this site isn’t about saving money. It’s about finding pure gasoline for your machine.
So we’re wondering: does ethanol-free gas exist near you, and if so, is it more expensive? Finally, is there a price premium you would be willing to pay for ethanol-free gas? Or would you even pick corn-free gas (and its groundwater-accumulating carcinogen MTBE) at price parity with E10?