Ethanol may be used as a gasoline antiknock additive. Ethanol contains moderate concentrations of sulphur, thus it negatively impacts the environment. A fuel distribution system that is changed over from gasoline to ethanol may experience some contamination problems. Ethanol, in its concentrated state, may be corrosive to some metals, rubber, and plastic. A comparative understanding of alternative fuels is necessary before they can successfully proceed with this guide.
Ethanol is a very misunderstood alternative fuel.
Many technicians and pseudo automotive buffs equate ethanol with methanol. In truth, ethanol, in low concentrations, will not harm late model vehicles. The only possible harm could come if a highly concentrated mixture was induced into the system. Methanol, however, is highly corrosive even in moderate concentrations. Another possible side effect of changing over to ethanol blended fuels is the possible detergent action on an older vehicle's fuel tank and lines.