nortexsook said:
Well you are the one that said we have a "choice" and while technically correct, you have to do a lot of driving (here in Texas) to find a station that does not sell E-10. I would GUESS that at least 95% of stations are selling E-10 nowdays and not regular 100% unleaded gasoline.
You can bury your head in the sand about small engine damage but alcohol is hydroscopic and attracts moisture which ruins engine parts.
Nortexsook, I think I can say without exaggeration that I likely have more experience operating small engines on E10 than most anyone on this board. Until a few years ago when I got on a community water system I had to pump water for my cattle with small engines at 3 well sites that did not have electricity. Mostly in winter but sometimes in summer.
Being from TX I'm not sure you can fully appreciate the "joy" of getting a Briggs started on a clear cold -30 degree morning. Sometimes I would keep a spare engine in the house and haul it out to the well in the warm pickup cab.
These were poor wells that barely kept up with a 2" well cylinder on a Duplex, Dempster, or Monitor pumpjack. At this rate a gallon of gas would typically pump about 5 hours and fill an 8' round stock tank.
The engines included old cast iron block Wisconsin models AB, AC, ACN, and AKN engines and not much more modern flat head B&S 3 and 5HP engines. Never had a carb problem with any of them due to ethanol. Every so often I had to change the diaphram in the carb on a Briggs because it would get a hole in it. The Wisconsins vibrated so much when idled down to run a pumpjack they shook the carbs to pieces and wore out every pivot joint on throttle and choke butterflys. I have a new Honda engine on hand that I have never started or even put fuel in because I got pipeline water before I needed it.
I don't run much for small engines anymore except the push lawn mower with a Briggs, a McCullough weed eater, and a Polaris 2-stroke 4 wheeler. They get along fine with ethanol.
I agree with Katrina. As she pointed out, most small engine fuel related problems (and for that matter large engines fuel related problems) are related to leaving old gas to go stale in a mower or weedeater until the next season of use. Cheapest and easiest solution is to burn or dump the old gas out and put in fresh for the next season.