[Lee Stewart]

E15 ethanol is coming, like it or not. Here’s what you need to know

Owners of collector cars, or any vehicle built before 2001, beware: The Environmental Protection Agency (EPA) is finalizing a rule approving the sale of E15 gasoline year-round, so use extra care when gassing up this summer.

In the United States, ninety-eight percent of gasoline sold already contains some amount of ethanol. Cars produced in the past two decades or so generally have no problem burning the common E10 blend, which contains 10 percent ethanol. Some stations have offered E15, which bumps the amount of ethanol to 15 percent, since 2005, but the EPA had previously banned its sale during the summer amid concerns that it contributed to the creation of smog. The EPA is poised to rescind the ban and make E15 available throughout the year under a rule it could finalize by June 1.

The change won’t happen overnight, and you’ll still be able to get E10. Still, motorists will want to be mindful when filling up. Not all cars can handle the higher concentration of ethanol, which can gum up fuel systems and cause corrosion in cars that haven’t been designed to burn it.

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