Quote:
Originally Posted by Dadhawk
The speedometer wouldn't have any correlation to the distance traveled (separate measurements) so it shouldn't impact the calculated MPG.
Also, speedometers typically read high by design. The primary goal is to never read LESS than the actual speed of the car. Most are high by one or two miles per hour but it could be as much as 10%.
Road and Track carried a good article on the subject some time ago. |
Good article, Thanks. It would have been interesting, though, if they used their "highly precise Datron optical fifth-wheel equipment" to compare odometer readouts vs actual. I guess I can read between the lines and say if there were an issue, they would have mentioned it.