As you know Ethanol is a clean-burning, high-octane motor fuel that is produced from renewable sources. At most gas stations a percentage of ethanol is combined with unleaded gasoline. The federal government arbitrarily limits the use of ethanol in a gallon of gasoline to just 10 percent (E10 = 10% ethanol and 90% unleaded gasoline). E10 is approved for use in any make or model of vehicle sold in the U.S. Many automakers recommend its use because of its high performance, clean-burning characteristics. Today about 70% of America’s gasoline contained some ethanol, most is this E10 blend. Problem is that many automobilists, boaters and now I hear bikers state that Ethanol in gasoline would lower performance, damage engine, , fuel handling systems and fuel tanks.
Ethanol is a blend of gasoline and ethyl alcohol. Ethyl alcohol is an excellent solvent and is hydroscopic, that is it adsorbs water. Acting as a solvent, it would appear that ethanol can damage and dissolve some tank sealants that can be ingested by the engine which can cause damage. Ethanol has also a cleaning effect on tanks that releases fine metallic particles passing through most fuel filters. The dissolved metals will clog fuel injector nozzles and carburetors. Ethanol added to a fuel tank contaminated with water will cause expensive repairs. The water in the tank will combine with the ethyl alcohol to produce a noncombustible layer of liquid in the tanks that will stop most engines cold. Right now, the EPA (Environmental Protection Agenc)y is accepting comments on a proposal to increase the allowable ethanol content of gasoline to 15 percent, a move opposed by many. So, I would like to know if you have experienced any problems that you think are related to the ethanol/fuel blend you use.