Speedometer too Fast

[caymandave]

Here is a good one. Our speedometer is readingh about 5% too fast.
That means we are putting 5% more miles on the coach than is actually driven. When I talked to the Freightliner guys they told me they could do nothing about the extra miles and depreciation they caused.
Any on have any ideas?
Dave

[Route 66]

Duplicate post.

Other post here.