Odd/even days! Man, I remember that, too. I had 2 license plates.
We all carried 5 gallon Gas Cans and would walk up and bribe people getting gas to fill our cans before shutting pump off, I had to take my Plates OFF numerous times to get gas.
My crew used to joke with receiver aircraft if they had an odd or even tail number when air refueling. Don’t miss those days of fuel rationing at all.
I remember watching my Dad siphon gas from one of our vehicles to put in the other. Occasionally he’d get a mouthful of fuel and have to spit it out.