Quote:
Originally Posted by Maverik259
Ya that's my question. Is this affecting the odometer or service indicators etc. it's adding over 1000 miles per year if it's 3 mph off with 1 hour of driving per day everyday.
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No, it does not affect the odometer. Most all manufacturers do this, as previously mentioned. For legal and regulatory reasons, speedometers are made to read anywhere from 2% to 5% over. This isn't new. But, also for legal reasons, (there would have been massive class action lawsuits long ago) the odometer reading is accurate. The average is about 3%, but if you really want to know for sure
GPS is the best way to find out what percentage your particular speedo is off by. By it's nature and how it derives position through mathematical equations, comparing frequency shifts from multiple satellites to triangulate position, velocity measurement is actually very, very accurate with GPS.
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