2018 Scat Pack
I presumed that cost was for 0W-40 since the OP was about the 6.4L engine, however later you mention buying 5W-20. Just to clarify, which oil was the $35 for because 0W-40 Pennzoil Ultra Platinum is usually about $8 - $10 per quart.Thats a pretty good price, it costs me $35 for 7 quarts of Penzoil Ultra platinum, plus 5 ish for a filter . You will get charged for 2 extra quarts anywhere from $10 -25 more.
I usually regret getting it serviced, they usually put some rinky dink filter on there, hopefully the dealership would use a Mopar one. But you will get the baby MO-409 vs the larger MO-899
one for sure