RE: OS 33GT Gasoline Engine for Pattern
I ran out of Avgas and decided to use 93 octane premium unleaded auto gas for a couple gallons. Today was the maiden flight with autogas and I must say it was less than stellar. The engine ran fat and never cleared up. Needles need to be tweaked but it was extremely windy and gusty and I never did tune the engine fully to my satisfaction.
Premium is not as stinky as regular and is actually pallatable. I may change for good since getting Avgas is not as simple as it was before. I no longer fly out of a side lot of an airport as I did previously