Thank you for your input. Yes, the dealer resets oil life number and tops off any fluids if needed, rotates the tires upon request, checks condition of belts and battery, washes the car. I guess they are looking for me to buy next car there. Occasionally I will go to a Cadillac dealer for oil change, they do all of above plus a custom ordered breakfast on the house free and it is pretty good, but they always want to replace my cabin air filter or other filters or wipers, clean fuel injectors etc. Also the cost of oil change is more. Last time I was there it ended up costing me $400 LOL but we were going on a long 12,000 mile round trip from FL to WA state, then stop in Arizona to see relatives and back to FL. So I wanted the car in tip top shape.
” ... they always want to replace my cabin air filter or other filters or wipers, clean fuel injectors etc.”
Replacing the cabin air filter and cleaning the fuel injectors are classic dealership ripoffs. At some dealerships, the service representatives get bonuses based on the number of such add-ons they sell.