Random question that came up in discussion this morning. Created an account here just to be able to ask this to the collected experts of the internet.
I remember, long long ago (okay, so not that long ago, but it sounds better that way), I was taught to drive stick in an old (late 60’s) Toyota Corolla. Manual everything. It belonged to the girl I was dating at the time, whose father had saved that car on purpose in order to have a car he could pass from child to child to teach them how to drive in a not-a-deathtrap-but-old-enough-that-if-you-wreck-it-it’s-not-a-huge-loss car. He also loved the fact that he could do all the maintenance on it himself - no computers required, just gallons of elbow grease and know-how.
Anyhow, I remember that car having a knob on the dash labelled ‘Dark’. My girlfriend told me before she let me drive it to never, ever, touch that knob, since it had something to do with oil and gas and the engine and badness if it was adjusted. It’s now been long enough that I can’t for the life of me remember what that knob actually did, though, and searches for “dark knob” on google return … somewhat more lascivious results than I care to peruse looking for an answer.
My curiosity has now been piqued - anyone out there know what that knob did, or have a link to a resource online I could use to read up on it?