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In a message dated 10/28/0 11:52:45 PM, Dan Schafer wrote:

<<From experience, I can tell you that the quality of what you get from a
service station pump can and does vary all over the map. >>

Almost certainly true.  I used to fill my 150 with the cheapest gas I could find.  I loaned the airplane to a friend for a few weeks and he couldn't bear putting the cheap gas in an airplane, so he used Chevron and claimed the engine ran smoother.  I switched to Chevron and, if only in my imagination, the engine does run a little smoother.  It's probably only my imagination, but 100% or our sample pilots (two) think it's better.

The EAA has done extensive testing on autogas and I trust their results, so I'm comfortable running an airplane on it.  However, it is true that there are no guarantees with autogas that you're getting the same stuff every time. I think a name-brand station with a high turnover of product should give you better gas than the no-name station that has fuel stored in their tanks for months.  By the way, if the refueling truck is there refilling the gas station tanks, come back in a few hours to let the tanks settle or go somewhere else.

- Rob Wolf

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