One way to check speedometer accuracy requires an empty, flat highway with mile markers and a speed limit above 60 miles per hour, and a friend with a stopwatch.

Check out useful tips on how to control correct speedometer readings for your Jeep! Deatils inside Jp Magazine ...

In the speedometer adjustment game, the further back you go, the harder it can be to find parts, and the harder it is to get to them for swapping.

If you change to larger or smaller tires and wheels from factory sizes, the speedometer may be inaccurate. Speedometer shops can calibrate your speedometer, much as they are calibrated on police cars.

Drivers have been given the real reason why their speedometer is not as accurate as they thought and a simple way to test it.