I'm thinking it would not be bad for a saw. I was looking at the Sunoco racing fuels and it looks like they are leaded as well. I ended up emailing Sunoco looking for high octane ethanol free gasoline in my area and will see what they say. My present saw fuel is 93 octane from BP Amoco and is getting around 10 months old. The lady that runs the BP told me their fuel has 10% ethanol in it. Labeling the pumps for this is not required in NC. The Opti-2 mix is gasohol compatible and does have a fuel preservative. My saws have been running great as recently as last week. I am thinking race fuel with Stabil added might be good for a couple of years.