It may not be directly related to chainsaws but in my case it is. I'm so fed up with these plastic cans with the yellow cap on the spout. I just filled the my yesterday and once I got to where I was going to cut some trees a storm knocked down, I look back in the bed and the damn cap is gone. It's happened before but stayed in the bed but this time it must have sailed right on out as I was driving. So that's why I'm here asking you guys what you use. Thanks