[tuq]

Since three respondents brought it up (I thought it was the throwaway comment in my response):

I remember the Ferris Bueller's Day Off bit well (and I feel that movie is overrated, but that's for a different thread), and don't care what he said. The miles came off the car and he ran it basically all day at reverse idle speed and got it back to roughly the allotment. He saved himself a ton of money doing so.