I don't see much out of line with that price...at least up here in Canada.
Oil filter....$4.95, 7 litres 5W40 or 0W40 Mobil 1 synthetic oil @ 11.00/litre....Add that up with 15 bucks for labour to boot!!
Add some tax and a hundred bucks don't even cover it.
That's what a service cost on a SRT anything.....unless you're using something cheap and cheezy!!
Oh...and I might add... the 6.1 litre recommended oil fill from factory IS Mobil 1 0W40 or 5W40 synthetic.
Anything else and you're using the wrong stuff.