Have had my 22 Cummins Longhorn for a couple months now and loving it. I just noticed that my dealer has put a service sticker for 5000 km (with oil change) and service every 5000km thereafter. Seems a little excessive to me considering the manual states first maintenance service at 12000km (7500 mile intervals) with no oil change until 24000 km. Can I lose my warranty or mopar extended warranty by not following the dealers 5000 km requirement?