There has been a rash of articles in the news the last few days about the effects of ethanol blended fuels on small engines, such as lawn mowers, string trimmers, chainsaws, and such. Most every article quotes some local service technician saying that repairs of these types of equipment have gone up and it is all because of ethanol.
As I have pointed out in earlier posts, I own a lawn care company and can assure that what the news articles are claiming goes against my own experience. For the last two years I have used nothing but E10 in all of my gasoline powered equipment and haven't had the first problem related to fuel. Even the fuel stored over the winter ran ok at the start of the year.
Further the only study that I could find that dealt with this issue concluded that ethanol blends are safe in small engines.
This test represents over 1300 hours of operation accumulated on test units representing 7 manufacturers and 6 use applications. Though the scope of the test did not allow the scientific precision that would be incorporated in more comprehensive testing, it does indicate that the average consumer would not experience equipment failures which result in loss of use or unusual repairs.
Of course, everyone should read the owners manual for their equipment and follow the manufacturers recommendations. But knowing that well over half the gasoline sold in this country contains some level of ethanol, it would be crazy for equipment manufacturers to sell equipment here that couldn't use ethanol blended fuels.