Does anyone know if it is ok to put UNL 88 (has 15% ethanol) in a 2018 CR-V

 

I would not as unl 88 also called e15. Popular Mechanics and Engine Masters both indicated that the higher ethanol of 15% is highly corrosive and will also attack rubber parts. It’s meant to be used on vehicles that can use flex fuel. Here’s the link. Also look in your owner manual. It may also void your warranty. Hope this helps.
https://www.popularmechanics.com/car...-e15-15096134/