The jug that Terry referred to is awesome, and if you want to get technical about them, looking at the bottom of the jug and finding the material marking, told me (as I compared it to my "VP Race" fuel jug) that they are both composed of the same material. Gas wouldn't harm them at all! The cap however that came with Terry's jug was different material, possibly why it cracked? I replaced my own with a cap from a race jug and have not had an issue. The other advantage is the large spout, this allows you to get your fingers inside if you want to plumb it for feed/return line for your pump. It is also available in different sizes too, 2.5, 5.0, gal or larger. I prefer the 2.5 gal now as I used to haul around a 5 gal jug. I find it much easier to handle and just mix as needed, keeping a 5 gal in the trailer with straight gas. The problem I found trying to find a cap for the other jugs was.... ( someone told me they have to always be a vented cap now for explosion hazards) Seems the last time I had knowledge, it was the fumes that were a problem, not the fluid itself, but hey I'm no genius. just a guy who tries to use common sense when doing things.