Dover, I have always used full synthetics and OEM oil filters that I get at the dealer. My F150 sees a lot of heavy towing and has gone over 130K miles with only repairing an alternator, balljoints and a new clutch.
The tranny and differential get only Redline lubricants. Debate is endless here as expected, but Redline
is heads above the rest and has the data to prove it on the Technical section of their website. The price is high but these fluids do not get changed as frequently. You can buy it on line.
I try and use Redline motor oil when I change it myself but shops do not carry it, so I have used Motorcraft, Mobil1, Pennzoil and Rotella synthetics when I cannot do it myself. I trust shops to charge me for synthetic but not to actually put it in. The fast lube at my local Ford dealer charges a little more for full synthetic but actually pulls the quart bottles from the back room and I can watch them through the glass pouring it in
On other major maintenance. I have the brake fluid flushed
every 2 years with synthetic fluid - brake fluid absorbs moisture from the air which plays havoc with brake parts and leads to brake fade when hot brakes turn it to steam.
Adaptive One brake pads from NAPA paired with Brembo rotors - excellent brake feel, zero problems and no wheel corrosion.
After watching the tech, it looks like I am going to start getting tire rotations at the dealer now. The tire pressure sensors need to be "retrained" for front vs rear pressure when the wheels are swapped. Procedure is in the owners manual and looks like a PITA.