It’s warped by the fuel consumption rate, if we upped it to a realistic volume, you’d be able to drive around more or less indefinitely on a single tank of gas, and if we increased fuel consumption rate to match you might empty out gas stations too fast (though with tank siphoning that might not be an issue anymore), and it just keeps going, such as using gasoline as ammunition, etc.
Now that’s the main reason it hasn’t happened, I wouldn’t be opposed to someone poking at increasing capacity and consumption by a factor of ten, then addressing further issues as they came up.
Alternately it might make sense to adjust the volume equivalency of gasoline, not sure what the right solution is.