Ok when you go over the mileage when the car thinks it ought to be serviced(a bit) It appears to put up a spanner all the time in the odometer and starts clocking up the miles since it thought it should have had a new filter. BUT Is there any other warning indication? Or put it another way, what does it do if you ignore it for a bit?
Sorry if this post offends by attributing thought to a motor vehicle, but they're getting too dammed clever for their own good.. and it aint getting a new filter till 60K even if it stamps its feet and throws a tantrum.
Rick.