zlacker

You can use the speedometer check zones on the Interstates to check this, Just note the value at the zero sign and when you pass the last sign note the value again and do the math.

>>throwa+(OP)
I believe the comment that you're replying to might mean that they wouldn't notice if their odometer was totally broken and didn't increase at all. I am the same. I assume the mechanics would notice when the yearly inspection showed the same odometer reading as the previous year.