I know this may be asking a bit much, but I'll had a bit of an idea: is it possible well could get a dedicated Vehicle and Petrol merchant(s)? Or maybe increase the current merchant gas can rate just a tad. I do understand it is an abandoned area and all but just a tad more petrol can't hurt, can it?
I petrol stations do exist already, I may not have gotten far enough yet and sorry for being redundant.