Miles = unknown, and it had no guages when I got it. Sorry I cant help, the guy I got it from, didnt own it long either. He did however build the motor I think, but he was kind of sketchy to tell you the truth.
When I traded her off the motor was strong and everything else in the car had been replaced. Overall it was a solid car with only minor annoyances.
No telling how many people have owned it sense I restored it and traded it off.
Good luck with the sale.
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Need stock manual tranny for 97 civic.