It seems like every gas can I’ve ever owned spills gas. Ordinarily using one involves unscrewing and assembling a spout and unscrewing another vent hole, which invariably results in gasoline covered hands. Then if you’re not careful, you overflow the tank on the mower, spilling gasoline onto the engine, or the ground.
The Smart Fill fuel can is exactly what I always thought should exist. It’s self-venting. It has an automatic shutoff. And it even has a hand-hold on the opposite side from the spout.
I’ve been using it for a few months now, and other than the initial transfer of gas from my old can to the new one, I haven’t spilled a drop on myself, the mower, or the ground. (It won’t work for your car though…)