I'm sure the comment meant "cars", not "cans". However, my old gas can from more than 20 years ago worked perfectly fine. But as for any one I've acquired ove

I'm sure the comment meant "cars", not "cans". However, my old gas can from more than 20 years ago worked perfectly fine. But as for any one I've acquired over the last couple decade, I can't use them fill my lawn mower (or my car gas tank) without spilling gas all over the place. The valves built into the spout can only open when you tip the can upside down and put pressure from the spout onto the tank, and for whatever reason it ends up spilling all over. And I'm not the only one who has complained about this. Big improvement in safety there, when gas ends up all over the ground instead of in the designated tank.