"Michael" wrote in message
...

I added premium unleaded to my gas can (plus oil) this time around for my
chainsaw. My chainsaw seemed to run a little hotter, which was helpful, but
I wonder if this is not the best thing for the machine. Any thoughts?
Thanks.

The manual with my saw recommends a minimum of 89 octane... I use ethanol
free premium gas along with synthetic 2 cycle oil (STIHL HP Ultra) that has
fuel stabilizers. In the past year or so one of the chain convenience stores
started carrying ethanol free premium gas and they are adding store
locations steadily over time--I've got one 7/10ths of a mile from my house
now. I started using this mix in all my Stihl 2 stroke equipment (string
trimmer, hedge clipper, chainsaw), and the gas in my mower, and everything
runs better.

I would expect your saw to run cooler, and better, with the premium fuel as
compared to say 87 octane based on my saw's manual:

"Use mid-grade unleaded gasoline with a minimum octane rating of 89 and no
more than 10% ethanol content."
"Fuel with a lower octane rating may increase engine temperatures. This, in
turn, increases the risk of piston seizure and damage to the engine."

John