I have one & it says on the gas tank 40:1. Although, I have many 2 stroke tools, so I mix everything 32:1 & adjust the carb screws accordingly. That way I only have to have one gas tank on...
use newer synthetic oil. it covers a broad range of fuel/oil ratios with one mix. it will allow you to use one fuel mix for all your 2cycle equipment. not marine though.
If you are asking about new gas chainsaws, they are the same thing. Husqvarna is the parent company of both Poulan and McCulloch. McCullochs made until the mid-eighties (before the company went...