i guess i'm kind of resurrecting an older thread here, but i have to know...are these the blitz cans you have all encountered difficulties using?
http://www.homeandbeyond.com/prod-0043236.html
i have a pair of them, and other than the nozzle being incorrect for the unleaded fuel screen on the tundra (fixed w/an unleaded nozzle TIGd to the blitz nozzle), i have not had a problem with them leaking or degrading, and it cant possibly be because i treat them any differently than anyone else. i do use a wrench or whatever to tighten down the screw top, maybe thats why. the only leaking i ever had was spilling down the nozzle, can, and truck when i had to use them the first time with the leaded nozzle and the unleaded fuel screen...what a pain.
there is another style, i dont know if it's blitz or someone else, that uses a nato-style clamp seal. i have heard of these not sealing properly, and specifically got the blitz cans instead since they were less expensive and less prone to leaking.
since then, i got a bunch of surplus NATO cans...five bucks each...and a NATO nozzle (cold war remarketing, colorado springs), and those things are bombproof. several came loose in the bed during elephant hill, none leaked despite winding up sideways, upside down, etc...oops.
i guess my feeling is i'll see how my pair of blitz cans works out, and honestly if they degrade i'm just gonna rattlecan them. i wonder if it wasnt a bad run of paint or something?
-sean