With a certified 100k warranty can you perform your own oil changes? My friends say Nissan and Honda with a warranty similar to yours don’t allow for that.
Valvoline is a great choice there’s many great synthetics out there.. Mobil, pennzoil, castrol super tech. Factory fill may be pennzoil.. you can also ask the dealer service department what they use in bulk.
Yes, they said as long as I have documentation for each change noting date and mileage.