Flling plot holes

[Sprocketteer]

It wasn't in a Morrow game (it was a fantasy rpg), but I did have a wealthy p.c. in a group who sold dairy cows, goats, poultry etc, fairly cheap, in return for a share of the animals produce - milk, cheese, eggs etc for the first year. He set up a general dealers offering goods, tools etc in the same way. In fact he managed to make the village self sufficient (the country was poor, recovering from a costly war), and his barter system for everything worked well. He had a lot of land, some of which he parcelled up and gave away to newcomers, for a share of their crops. His goal was to have his own town - he started small and over several years it grew to a decent sized settlement.

I read somewhere that fuel - gasoline etc only lasts a few years before becoming useless. If that's true, would there be the possibility of a gas by-product as a result of that fuel breaking down? I am not a chemist as you can tell lol.