Patent ID: 7535347

Claim:
A method of optimizing vehicle service intervals for a plurality of vehicle service items, the method comprising the steps of: selecting at least a first primary service item; defining a plurality of recommended service intervals for different vehicle operating variables for the first primary service item; periodically determining service intervals normalized to distance traveled for the first primary service item and predicting a minimum service interval based on a smallest result of periodic determination of service intervals; selecting at least a first vehicle service item other than the first primary service item for service at the minimum service intervals; the step of selecting at least the first primary service item comprising: monitoring vehicle operating variables determinative of service intervals for a non-primary vehicle service item; if required, for a particular non-primary service item, generating a service interval in terms of distance; and determining an adjusted service interval for the non-primary vehicle service item based on a ratio of the minimum service interval and a service interval for the non-primary service item and multiplying the service interval for the non-primary service item by the ratio.