Quote:
Originally Posted by SCCThree
My question is: does it just show a couple extra MPH on the speedo but the computer has accurate MPH? Dunno...  |
I think it's reasonable to assume that the speedometer gets its info from the computer. In any case, the roadside radar readouts consistently prove that my speedometer is off.
Next time out, I'll try to remember to do a timed run between mile markers. One mile traveled at 60 MPH indicated should take exactly 60 seconds. Probably set the cruise control to 60, first.
And for what it's worth, every car I've owned during the past 20+ years has had an optimistic speedometer, including my current MB GLK-350.