Go to this website. He has 1,129,204 miles on a 1997 E-250 Van with original engine, transmission. Neither has been rebuilt. The website is http://www.millionmilevan.com/. Reading that his longest oil change was 55,000 miles on dino oil is absolutely amazing, but how many of you BITOG users would of liked to see a UOA on that one? Check it out!