Really starting to get fed up with the Stihl flippy caps. At about 1 year old the caps on my 260 Pro were beginning to seep on my workbench overnight. I replaced the o-rings on them, and that seems to have cured the seeping problem with the oil cap, but the gas cap still does it at times. I think the 'flippy' mechanism is getting worn and not putting enough pressure to seal tightly. As I set here, taking a break for lunch, pants reeking of the gasoline that has seeped on me throughout the morning, wishing it had the old-fashioned screw type caps. I guess I will have to talk to my dealer and see how much a new gas cap costs. An over-engineered, more complicated than it needs to be, and almost certainly more expensive, mistake Stihl has made. An otherwise flawless saw tainted by such a simple thing as a gas cap........