Your speedo accuracy may not be as good as you think……..
The Australian Industry Standard requires that a speedo must not indicate a speed less than the vehicle’s true speed or a speed greater than the vehicle’s true speed by an amount of more than 10 per cent plus 4km/h.
This standard results in a surprisingly large spread of legal speedo’s that display anywhere from 87.4km/h to 100km/h when a car is travelling at100km/h!
With overhead speedo display checks that could once be found on freeways seemingly almost extinct, we can now turn to new App technology to assess the accuracy of our speedo’s. There are a number of free Speedo Apps on the market place that can be downloaded if you’re interested in testing the accuracy of your speedo. If you click on this ‘Drive’ article it outlines some useful suggestions on the best way to test the accuracy of your cars speedo.
Interesting the articles tested a number of cars, and found luxury cars in general to have more accurate speedo readings. In the study two Porsches were tested, a Porsche Cayenne S Diesel showed a reading of 97km/h and a Porsche 911 Turbo showed a reading of 98km/h when travelling at 100km/h.
If you do decide to test your speedo and you’re happy to share your results, we’d love you to add your findings in the comments section.