It's 1992. Your mom just took you through the Dairy Queen drive in after supper. It was 30C today, and it's going to be 35C tomorrow. You're going to go swimming at the local outdoor pool with your mom, little brother, auntie and favourite cousin, tomorrow though. Mom will probably put on that Blue Rodeo tape on the way back. It's not your favorite, but you find yourself waiting for the song hooks.
One of the weird problems car guys ran into in the 1990's was cars with non-functional R12 A/C. If you had one that had lost it's gas, that was it unless you could find someone's forgotten stash of white cylinders or wanted to circulate high pressure propane in front of and around an internal combustion engine.
Nowadays it's easy enough to change it over to R134a.
