On 2005-05-09, Jay Honeck wrote:
Best of all, Atlas (our Lycoming O-540-powered Cherokee Pathfinder) simply
runs best on regular, 87-octane unleaded car gasoline.

Unfortunately the engine isn't the only consideration. For some reason
the Comanche is subject to vapor lock with mogas so there is no STC
available.

What's really sad is that last year this time I was paying less for avgas
than I am *now* for mogas.

--
Ben Jackson

http://www.ben.com/