wrote:
Michigan has had 10% pretty much since some time in the 80's. I've
only had one lawn mower that didn't start (fouled plug) in spring in
all those years.
snip

A few percent of ethnol can be a good thing. That's what "DryGas" and
associated winter treatment for auto gas has been for generations. It
combines with traces of water in gasolline harmlessly fgo into miscible
solution with gasoline. It all passes nicely ithrough combustion,
essentially unnoticed.

The "10% limit is the smart way to go and leave it at that.

Angelo Campanella