The gas you buy at the pump this summer may become E15--and that's raising concerns

[RKP5637]

1. Doesn't E15 destroy older cars too? I think it rots the fuel system.

"There are three general categories of ethanol-gasoline blends: E10, E15, and E85. E10 is gasoline with 10% ethanol content. E15 is gasoline with 15% ethanol content, and E85 is a fuel that may contain up to 85% fuel ethanol. The ethanol content of most of the motor gasoline sold in the United States does not exceed 10% by volume. Most motor gasoline with more than 10% fuel ethanol content is sold in the Midwest where most ethanol production capacity is located. Gasoline dispensing pumps generally indicate the fuel ethanol content of the gasoline.

All gasoline engine vehicles can use E10. Currently, only flex-fuel and light-duty vehicles with a model year of 2001 or newer are approved by the EPA to use E15. Flex-fuel vehicles can use any ethanol-gasoline blends up to E85.

https://www.eia.gov/tools/faqs/faq.php?id=27&t=10

People with old classic cars are going to be screwed. Maybe there is some additive you can add? I just don't know.