x2 or take a brass punch and brass hammer and knock a hole in it ..... dont use the Batman method or u will blow yerself up
Put the siphon hose down the tank fill hose at the gas cap or take the fuel filler hose off the fill neck of the gas tank and stick your siphon hose in there. I wouldn't want to run 10 year old gas in a good piece of equipment, IDK maybe the old gas can be used as a weed killer if ya don't think it will run an old POS lawn mower.
The 5 year old gas isnt good for anything except for pouring on weeds to kill. Especially poison ivy or oak.