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It's like the comments on ethanol gasoline. I have been using it for over a decade and never "destroyed" any little engine....heck, hardly had any problems with it once a few lessons learned within the first year or two. But usually nothing more than a minor carb clean. Granted I wasn't using antique equipment, just the normal stuff homeowners, RVers and boaters would own. So I am not sure where this great myth came from other than user error.
We have two gas engines, forget the HP, maybe 20-25, where ethanol killed the engines requiring new carbs. They could not be cleaned because they were corroded and had to be replaced. Cost quite a bit of money to replace and since it happened during the middle of the pandemic, it took quite a bit of time to get new carbs. There are not old engines either.
There are now several gas stations that have non ethanol gas so that is what we put in the engines which hopefully will prevent this problem in the future.
Later,
Dan