Have you any idea how much the odometer is out by % wise?
Checked it against your car over a distance , or against mile marker signage, on the freeway?
Is the speedometer accurate?
Coach equipped with the original size tires?
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.