I bought two of the metal ones and they're terrible. The mechanism on the spout that allows it to retract is so stiff that it's basically a struggle to fill a lawnmower tank because you have to hold it back as the gas starts pouring out. Since the egress is round, you're bound to spill before you get it into the hole. If you don't hold it back you have to press it so hard into the lawnmower it starts leaking around the seal at the base. Idk how anyone can tolerate these cans.
> I bought two of the metal ones and they're terrible. […] a struggle to fill a lawnmower tank […]
Jerrycans (20L) were designed for semi-bulk filling of large-ish vehicles, not for low-volume top-ups of small-engine appliances. Perhaps you bought the wrong tool?
You can thank the US government for that, it's a federal requirement on all new gas canisters. It's supposedly to prevent accidental gas spillage but in my experience it makes the problem far worse. You can still find traditional spouts, but don't use them for gas they're for water only ;)
