The freaking E-10 ruins lawnmowers, weed eaters, chainsaws and outboards ...
I drive out of my way and pay .75 per gallon extra for straight gasoline ... and that is a hell of lot cheaper than replacing / rebuilding fuel lines and carbs.
Who the hell needs a study ... you could just ask any repair shop or anyone that owns a lawnmower.
TT
E10 has ruined the catalytic converter in my 2000 van. The engine light came on and the code the van threw says the cc is going. A huge percentage of automobiles were not designed to deal with ethanol in gasoline.