I've had one, but have friends with many, and all seem to use 40-1 for max power.
The fuel mixture for a Stihl chain saw is gas and oil.
1 oil to 40 gas.
The proper mixture is 40:1 or 3.2 oz oil to 1 US Gallon of gas.
when you are mixing gas for a chain saw. it will tell you 40;1 or 50;1 that is how much 2 stroke oil is in it. you can buy at almost any hardware store little containers of 2 stroke oil that mixes with one gallon of gas. it will say on it what the mix racial of that container will make.
40:1
50-1
In all Craftsman chain saws going back to at least 1990, the oil/gas ratio is 40/1.
It's 40/1.
most chainsaw gas/oil mixtures is 32/1
The fuel mixture for a 2.0 McCulloch chain saw is 32 to 1. This means that there is 1 part of 2 cycle oil mixed per 32 parts of fuel.
Most Husqvarna's are 40/1.
I would go 1/40.