We have a 2014 S-60 with a Certified Pre-Owned Warranty (CPO). My wife only drives 5-6K per year and the car had the 40K service one year ago. She only has 46K on the car at this point, but the dealer is telling us we need the 50K service now because it has been one year since the 40K service. We don't want to do anything to jeopardize the CPO warranty, but the dealer charges an arm and a leg for the interval services and we don't really want to have a 50K service with only 46K on the clock. I have seen no mention of time intervals in any of the Volvo Warranty documents and was wondering if moving the 50K forward is really necessary. I wouldn't have a problem doing a simple oil change now, but don't want to pay for the full 50K interval until it is due. BTW: The 40K service was over $850. Any thoughts on whether this is required to keep the warranty intact?