Ethanol has ruined a growing list of products for me:
Weedeater - fuel line disolved
Chain Saw - fuel line disolved twice
Push mower - rubber bladder style carb became dry and ruined
Riding mower - every 2 years, the gasket in the carb disentegrates
Car - fuel line rusted from inside out, near top of engine where it bends to meet fuel rail.
I’ve started using fuel stabilizer specifically meant for ethanol...for my mowers etc. But I can’t afford to put that in my car all the time.
Most cars now have an extensive fuel vapor system, with lots of plastic parts and rubber tubing. I think alot of these will fail...giving check engine codes, and making your car smell like a filling station - but remember, its all to save the environment.
I have a similar list of small engine problems that are related to E10. Finally, I went and bought some mid-grade gasoline at the local marina (ethanol-free). Now the little clear primer bulbs don’t require replacement every three months.
All these problems you have experienced is exactly the reason the Indy car (which use 100% alky fuel) drain all fuel tanks, put a few gallons of racing gas in, start and flush complete fuel system before going back on the truck for the trip back to home base. The alky is not to be left in the system for even an overnight period.
Their fuel systems all have Teflon lined, stainless steel hose and hard line, designed for alky fuel. Is there a wonder why we have problems with our small engines and automobiles? Water, water, water.