There is an easy test to see if your gasoline contains alcohol. Taking a calabrated or graduated cylinder like the type you used in High School Chemistry class add 9 parts gas to one part water. Shake the mixture and let it stand. After 10 minutes and examine the amount. If the level has not changed then there in no alcohol in the gas. But if the level has increased......then the gas contains alcohol. This is because the alcohol has seperated out of the gas when it attached itself to the water.
The EAA website has 2 excellent articles under the mogas STC: http://www.eaa.org/education/fuel/autogas_vs_avgas.pdf Brant Hollensbe West Des Moines, Iowa Bhollensbe at mchsi.com
