Modern cars surround drivers with digital certainty, yet one of the most basic numbers on the dashboard is quietly biased in ...

Bear with me while I complain like a little girl whose shoes are too tight. I'm sick of answering the same "Why doesn't my speedometer register correctly since I swapped tire sizes?" question over and ...

It's pretty well established that car speedometers are mildly inaccurate. However, if you're wondering whether GPS is any ...

Question: I’m having a problem with intermittent reading on the speedometer of my 2000 Nissan Frontier. Sometimes it reads correctly or jumps around to different readings, or gives me no reading.

Yes, but just a bit. A car measures the rotations of the axle and wheel. The speed is the distance traveled per hour (speedometer reading). The distance traveled (odometer reading) is rotations ...