By the time you drive to your preferred auto parts store and buy the oil and filter, you're right at what the Works Special will cost w/o having to do the work. I used to do the routine maintenance on my vehicles until age and common sense convinced me to take advantage of the Quick Lane specials. I plan on hanging on to this vehicle...unless some idiot crashes into it; so I want a history of regular service work that won't interfere with any extended warranty issues down the road. I have learned to avoid the dealerships who employ trade school students (not sponsored interns) as they aren't always as attentive to detail as I would be...like the one time the lug nuts on one wheel were not torqued. Fortunately I figured that out real fast and no damage was incurred other than a second, and final trip to that dealer.
I go to walmart once or twice a week so I am not making a special trip wasting my time to get oil and filter.
By the time I drive to dealer and drop it off and get ride back and do the same to pick up or drive there and wait for them to do the oil change....I could already be done with oil change at home. Esp on a truck or Expedition. I don't even need a jack to change oil on ours. I slid under on left shoulder and slide drain pan under then get filter from under front bumper on driver side.
I can do it in 12 minutes start to finish if I am in hurry.
The only + to a dealer is the free water and often small soft drink containers in the waiting area.
If they don't have free little pops....NO WAY I'm using them..
Put some free snacks in there and I will come more often and bring friends. We have actually done this. Friend use to use a local Cadillac dealership as his dad was a lifelong GM worker and owned one after another. They typically had 3 GMs in the family at any given time.
They had little pop in a mini fridge and he would let me know when he was going in for service and I would meet him there and hang out and chat.
Kind of like "having coffee" for non coffee likers.