Just did mine.Previous oil change performed by the Dealer.The Oil did not look all that great.Stock Oil Filter is way too small for our Engines and it was really heavy.
I doubt they used Synthetic.It was a complimentary oil change.I guess you get what you pay for
Filled with Redline 5w30,slightly overfilled,but within range.Used all six Quarts with the longer Oil Filter from Purolator PL 14610,installed magnetic drain plug as well.
Took it for ride,hard ride,could not go over 200 degrees Oil Temp.Definitely runs cooler with Redline Oil.Worth every penny.