On Wed, 11 Nov 2009 17:21:09 -0800 (PST), Doug
wrote:



What's wrong with 92 octane? Just make sure it is ethanol free.

It is my understanding on smaller engines the 92 octane is a far too
rich to be used perhaps causing the engine to run too hot? And in my
area finding the ethanol-free gas is getting extremely difficult.

High octane fuel causing an engine to run hot is a MYTH. - and getting
ethanol free high-test is a LOT easier than finding ethanol free
regular.

Just FYI, it was my lawnmower service mechanics who suggested high
octane.
"Oh, we always use the premium gas!" I had never heard that before
myself.
Sounded a bit fishy.

The business about lead substitute was from an elderly neighbor, who
probably is pre-1975 in his 2-cycle universe.

Leaded fuel is NOT required (or even desired) in 2 stroke engines.
Lead was required to protect the valves, which the VAST majority of 2
stroke gasoline engines do not have.