[Myrddin]

Ethanol melted the hose to the fuel pump in my wife's Italian BV500 scooter. I paid $44 for a 1 foot piece of fully submersible fuel hose that could withstand the ethanol tainted fuel. It was about a 1 hour job to swap it out. The bike started perfectly at that point.

[NorthMountain]

That seems to be where the problems occur, if they’re going to: hoses and gaskets. My 4-cycle small engines are DESIGNED for E10 ... I wrecked a chainsaw using E10 ... new chainsaw and trimmer (2-cycle, both) get only properly oiled petrol, no alcohol. I have had no trouble with them so far.

My truck has a flex-fuel engine. It runs great on E85, but takes a serious mileage hit.

[Paul R.]

I’ve had multiple problems with fuel hoses in oldish lawnmowers and such deteriorating, presumably due to E-10 fuel. Or, maybe they were just cheap year 2000-ish Chinese hoses.

However, I did not buy those specific shaped lines to do repairs: Instead, I merely bought a few feet of correct size fuel hose rated for ethanol, cut to length needed, and ran them with a modicum of (un?)-common sense. There was a bit of “a-engineering” in a couple cases to keep them in place with no sharp bends or kinks, and in one case, away from a hot spot & better than the original.

Problem solved, at about 1-fortieth the cost (per repair) that you state. Possibly it took slightly longer in a couple cases. “They ain’t factory”, but I could care less.