It was two or three years ago that I realized the engineers had finally developed a gas can that flat didn't work. Having to use both hands to try and pour gas into the chainsaw is just too much trouble. I buy replacement spouts whenever I can.
I buy premium, ethanol free, gas for all of my small engines. I got tired of having to constantly replace fuel lines on generator, mowers, motorcycles, etc. I also use premium in the vehicles which don't get driven a lot. GD