I'm sure Hondata did their homework but I have to ask..
In my motorcycle gas with just 10% ethanol has caused problems with rubber, and gaskets prematurely deteriorating, but the bike is almost 20 years old.
Is there any concerns with running gas with up to 85% ethanol content in a 2017 Civic?
Flex Fuel - Ethanol Concerns?
Re: Flex Fuel - Ethanol Concerns?
We have not seen any problems with this.