As a painful-to-be-around hardcore old air-cooled Volkswagen geek, I sometimes forget that the arcane details and quirks of these old cars are not necessarily common knowledge to everyone. That’s why I was actually surprised to find that some of my colleagues—equally hardcore gearheads though they are—didn’t know the goofy yet wonderful method old Volkswagens used to wash their windshields. On the off chance that you don’t know either, I’d be delighted to tell you all about it. So prepare yourselves. Let’s start by just reminding ourselves exactly what a car’s windshield washer is and does. The job of the windshield washer system in most cars can be, if you’re a clever enough student of language, discerned by the name: it washes the windshield. It’s a complex, subtle thing, but I think you get it. The way this usually happens is via the expulsion of a cleaning fluid, like water or some Windexian compound, onto the surface of the windshield, and then the windshield wipers wipe it all over the, um, windshield. It’s the part that involves the spraying of the fluid that I want to focus on. To spray fluids with some force out of a little nozzle, you need either a muscular bladder lik...