DTE Questions + Odometer Question

[bartsau]

Ok so the ford dealer would be able to reset it too the max of 3.45 and since I have 3.9's I won't bother. I did actually buy a gear for the gearbox in order to rectify this problem however, I ordered the wrong one and the spline is reversed to what I needed.

I have done some more calcs.

Based on the Odometer in the car:
Distance = 664km
Fuel = 67.9L
Ave = 10.23L/100km

Based on maps:
Distance = 580km
Fuel = 67.9L
Ave = 11.7L/100km

So I racked up an extra 84 kms. Which means according to odometer vs maps my speedo is reading 14.5% over what it should be reading.

Just found it fascinating how far out it was. Having said this I shouldn't get done for speeding if I stick to my speedo as it is way way under