RAY: You have an old heap, like a nice 1974 Chevy Caprice and it's starting to burn oil at an alarming rate. You go to the gas station. Every time you go in you say check the gas and fill up the oil. At any rate you go in this one time --
TOM: I don't see anything puzzling about any of this yet.
RAY: Hang on. We're getting there. Butch, the chief mechanic at the gas station says, "No wonder you're burning oil. You've got this wimpy little 10W-30 motor oil in here. You need the oil that conquered Mt. Kilimanjaro. You need 10W-50 or 20-50. You need some nice thick oil, because the oil pump is pumping the oil past the rings."
TOM: Sounds reasonable to me.
RAY: Anyone that has a package of Lucky's rolled up in his T-shirt sleeve must know what he's talking about, right?
TOM: Are his knuckles scraped?
RAY: No. They're manicured. Anyway, Butch changes your oil and puts in 20W-50. You drive away and notice that you can't see Butch in the rear view mirror due to the cloud of smoke that's behind you. But, you're not worried. You figure it'll take a while for everything to work.
Many weeks go by and you notice that you are burning oil at about twice the rate that you were before.
The question is, what happened?
Think you know? Drop Ray a note!
[ Car Talk Puzzler ]