My salesman told me at the first oil change, service, that is no charge, they will be using a synthetic blend, most likely Quaker State 4x4 oil. I use this oil in two other vehicles, it has cut oil consumption by half in an older Ford V8 truck. Since it is a blend of regular oil it can be changed over from conventional at any time unlike full synthetic. I do not work for any oil company btw, however its been a good product for me, and I like the extra lube features of the synthetic especially for this crazy vehicle that starts and stops so frequently.