I noticed one thing that I do, as part of my "EDC", that different from both of the lists: I always keep my gas tank at least half full.

First, if you develop that habit, you don't have to think about when you change levels; stress will be building and you have more things to think about.

Second, although you stop for gas more frequently, you end up using the same amount of gas.

Third, if you get stuck on the road in some really bad backup caused by a really bad accident, you have a lot less chance of running short of gas.

So, a half tank of gas goes along with/is part of my EDC carry.

Just a suggestion (Drilled into my head as mandatory by my Dad when I was learning to drive. . .)