Friedrich Schringenrudder's Foppish Neckwear
RAY: Here's the answer. Back then, planes had two cycle engines. Just like your big weed whacker or your chain saw, they had to mix the gasoline and the oil, and the oil of choice then was castor oil. Of course, the pilot sat right behind the engine, and the exhaust fumes laden with castor oil would blow in his face.
When the pilot landed the plane, he'd have to make a mad dash to the outhouse, because castor oil as we know is a pretty good laxative. So, the scarf was extra long so that as he flew and it got saturated with the oil, the pilot would pull on the short end of the scarf and keep exposing a new section. The scarf would act as a filter.
TOM: Gee, that's what I need for my MG.
RAY: You need more than the scarf. Do we have a winner?
TOM: We certainly do. Our winner this week is Paul Goode from Walla Walla, Washington. Congratulations Paul!
[ Car Talk Puzzler ]