I've got a question that's probably basic to a lot of you but I genuinely don't know the answer and would rather ask than guess wrong, we run a small generator setup for backup power at a site near Al Rawda, and we keep a modest reserve of diesel on hand in case of outages, which honestly hasn't happened often but when it does we're glad we planned ahead, the issue is the jerry cans we've been using are starting to look a bit worn, slight discoloration and one has developed a faint smell that wasn't there before, and I'm not sure if that's just normal aging or a sign that the container itself is starting to break down in a way that could actually affect the fuel quality inside, does plastic type make a real difference here, like is there a meaningful difference between generic containers and ones specifically rated for fuel storage, because I always assumed a jerry can is a jerry can as long as it's sealed properly, but now I'm second guessing that assumption given what's happening with ours, while looking into replacements I came across a listing for quality 20 litre jerry cans in Al Rawda that specifically mentioned fuel grade material which made me wonder if that's actually a distinct category or just marketing language for what's essentially the same plastic used in general purpose containers, does anyone know how long a properly stored jerry can should realistically last before needing replacement, because ours have probably been in use for a couple years now without us really thinking about whether they had a shelf life at all, also is the discoloration something to be concerned about in terms of fuel contamination, or is that just cosmetic wear from sun exposure since ours sit in a semi outdoor storage area, I don't want to keep using something that might be compromising fuel quality without realizing it, especially since this diesel is meant to be a reliable backup during actual emergencies, so if anyone has dealt with aging jerry cans before and knows the warning signs of when it's actually time to replace them versus just cosmetic wear that doesn't affect safety or fuel integrity, I'd really appreciate some guidance because right now I genuinely can't tell if we're overdue for new ones or just being overly cautious about something that's probably fine.