I second the Sceptre brand for several reasons:
-Locking cap that won't work loose [a 2" rubber
plumbing coupling- they type that come with hose clamps- fits tightly over the fuel cap- and a 1.5" rubber cap fits snugly inside the top of the coupling- to protect the tank cap in harsh environments. We do this on
tanks that hang off the back end of our 4 wheelers...]
-One of the few with a spout that fits inside the can when not needed (no California appendage to break-off...)
-Cube shaped, so low, stable profile
-Find the newest models- they empty twice as fast as previous models if using the spout
-Plastic seems thicker that many competing cans- but this is subjective
We've used them for years on the
boat and on land from 95F to -50F. They have held up as very exposed spare fuel cans on our ATV's for hundreds of miles on back-country trails.
There have been several variations of the spout over the years. Currently the green and yellow versions seem to hold up best, but I carry a couple of spare spouts anyway... [Their spouts are EPA compliant so fuel flow is controlled by pushing down on spout when in tank filler neck. If the control mechanism breaks, fuel may not flow through spout... On the
boat we typically use a jiggler type of syphon hose so the spout is moot.]
These cans really swell up in heat, and shrink-in quite a bit if not full in the cold [e.g., once below freezing, so this hopefully won't apply to most...]
Cheers!
Bill