Speedometer Variation.

Submitted: Tuesday, Aug 11, 2009 at 08:33
ThreadID: 71401 Views:7966 Replies:10 FollowUps:5
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I purchased a Mitsubishi Triton 4 x 4, a bit over 12 months ago.

On a recent trip the Garmin navigator I have installed displayed the speed about 8 KPH lower than the speedometer displayed when doing about 80kph. This was confirmed with a Garmin GPS 12.

Though this variation is in my favour, so to speak, when I am not pulling a caravan, I'm like a great many motorists and take a chance by exceeding the speed limit a bit. Living where I do, it is just not a viable option to observe the speed limit on the open road as it takes far to long to reach anywhere. NSW & SA haven't woken up to the fact that a 130 Km speed limit is a viable option on some of the highways in the west or north of their respective states.

After all of that, my question is this? Is it normal for speedometers to display an inaccurate reading, and if so, can vehicle warranty fix this up.

If the inaccuracy goes one way, what is to stop it going the other, and display a lower reading than the speed in which one is actually travelling at, to the detriment of ones wallet and driving record.



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