What you watching? - Quarantine Edition

I enjoyed that series but 1 thing bugged the :poop: outta me throughout the series and that began in the very 1st episode:
It was killing me seeing Ish drive all over California with his infinite fuel supply! Dude made a round trip from San Francisco to Vegas during the 1st episode in a giant Nissan Pathfinder without ever once siphoning for fuel. They were still operating vehicles 20+ years later, where did that fuel come from?
i would assume he wouldn't have had much problem finding an endless supply of vehicles to get gas from.
i take it as the same as showing people going to the bathroom, its just implied they are.
but like much of the show, they don't into detail about many things, like the virus for example.
they do make reference to trading fuel, so i would assume they found a way to refine it or certain additive to store it
another detail i did notice in the beginning was when he was in his coma or whatever, if i remember correctly he woke up multiple times and drank water then passed back out. which was nice since you see so many times in movies/shows where they couldn't possibly be in a coma for weeks without water.
but as far as the lack of details, its what kept the show able to move forward for the 25+ (technically 50) years so quickly.
they probably could have done a couple more episodes, but if the wrong person got a hold of it, they could have streached it out for multiple seasons easily.