Friends don't let friends go dry.
As for the Vietnamese student story....it must have been the first day of class or something. I can't imagine an auto student of any nationality not knowing the word OIL....
I have, however, heard MANY stories of folks just driving with ZERO thoughts of oil and thinking oil was a consumable in the way gasoline is. IOW, tank gets low, add some. Except these folks didn't even know what a dipstick is all about. Expecting a gage to keep them informed (which gage, though). Yes, most are warned with a light. Some even ignore the light, thinking again that oil is a consumable and if the car "runs out", that's why they have a cell phone......I suppose so
My wife can change the oil. I only have daughters. They are NOT "ignorant females". They have and are gaining knowledge on the workings of IC engines. I mean, really, how tough are the basics for girls that can do calculus, beat my *** at chess, whip me on video games, snake me out of every $1 in my wallet, write award winning essays, build stuff, win the cover design contest for school annual, and generally make most men and boys look foolish (self 100% included)?