“Kills engines.”
It’s know to kill small engines and the very old engines.
But my 2001 Tahoe has 211,000 miles on it and every mile was on ethanol blend.
It runs great.
Still.
264K on my 2008 Dodge Caravan using blended fuel.
I'm also happy that in Florida where I now live, ethanol-free gas is readily available, unlike the corn farmer run state I left. As a bonus, I get 10-15% better gas milleage.