I just saw that the Coast Guard has issued a warning that boat owners should not be using E15 ethanol fuel in their boat motors due to warranty voiding and also possible fires due to overheating. This got me to checking, and our Honda generators are restricted to no more than E10 gasoline, and I'm pretty sure most other small engines have the same warnings. I also read recently when it was announced that gasoline could be E15 now, that there would not be any labels on the pumps that would indicate whether the gas was E10 or E15 from the pump.
https://www.yahoo.com/news/dont-fill...210012929.html