Just a heads up..... Before I posted this today... I called Jim Norton Chevrolet in Tulsa OK, and was quoted $70 by the service mgr. for a MY2016 Z06 oil change and filter using fully synthetic GM Dexos motor oil (manufactured by Mobil 1).With synthetic oil, C7 Z06 oil charge is about $160. NSX was about $300.
Sorry, but unless they were lying .... $70 bucks was there quoted price for the job.