You’re wrong - Jimmuh Carter’s “Gasahol” wrecked tens of thousands of car engines. and the current 10% is doing the same thing all over again.
You’ll need to read what I wrote, again.
:)
I don’t know about ruining engines, but I do know that you couldn’t run gasohol in carburerated engine in the summer time. If you shut the engine off for 5-10 minutes on a hot day you couldn’t start the engine when you got back in the car. We used to put a cold drink cup over the throat of the carburetor to cool it down to get the car started.
Boy do I remember that! One tankful and my VW Rabbit’s engine was a mess.