after five pages i can't remember if this has come up but i thought about addressing it when i read the first post. yes, leaded fuel could damage your saw if it has a catalytic converter. lead wasn't removed from automotive fuel so much because of health issues but because catalytic converters became part of the pollution control equipment on almost all gasoline powered cars. interestingly one of the few exceptions was the early honda civic which had a stratified charge system that made the cat unnecessary. another was the dodge colt which used a small second intake valve and precombustion chamber. both of these cars could achieve 50mpg. i've never heard of leaded fuel damaging a saw without a cat. we all burned leaded fuel until the 1970's. lead was added to fuel originally so that blends could be made more cheaply without sacrificing octane (pinging.)I read another post from a member that stated the 100ll which is what is in question is basically half the lead of the old 100 green gas. I would like to see that in ppm or percentage. How much it actually equates to. The original question was of the guys running it,were there any issues with the equipment over time due to the lead, something we can't see. Maybe before this thread dies we can answer those questions.
by "green" gas i think you mean pre "LL" av gas. it's been more than ten minutes since i read about that but you can find the numbers on google like i did. there are several types (and colors) of av gas.