My pickup has 96k on it now. I bought it with 82k last year. It started acting up the other day. I've only put maybe ten miles on it since. I did notice the last time i was home from college, i put it in park and it revved way up to 3k. It was odd, but never thought much of it cuz when I turned it off and later back on, it was fine. Don't know if that has anything to do with it or not...it was cold that day. I do live in North Dakota if that tells you anything. lol.