On 2/3/2010 6:15 PM, donaldfleischut wrote: > Mogas contains 10% Ethanol. There are a few stations that have no Ethanol, > but thet are few and far between. > Don't bet on it it. If you use pump gas, test every batch for ethanol. Don't use it if it tests positive. > How will the plane preform on 93 Octane with 10% Ethanol? Fine up until it quits. Aircraft fuel system components are not tested for compatibility with ethanol. Hoses, fuel pump components, tank sealants, carburetor needles o-rings and other seals and indicator float assemblies are all potential problems > Can I switch back and forth between Avgas and Mogas? > Yes. they are compatible with each other.
John
