blupupher

iTrader: (2)

You are not looking very hard.
Valvoline conventional, Mobil conventional, Pennzoil conventional all meet the WSS-M2C946-A spec.

650NutKase's advice is spot on.
Just change when the OLM says to.
Me personally would change it every 5000 if using conventional just because turbos can be hard on motors, but that is another subject.

hoondogg

You are right, I didn't look hard enough. Lol. I used the blend oil.

AZ_HighCountry_F150

Valvoline 5W-20 full synthetic in mine.

Sneed

What ever the dealer uses that's what is in my truck. I get 6 free oil changes with the purchase and I will pay them afterwards to change the oil. I'm getting lazy in my old age and the cost difference isn't worth the hassle to me.
I had the first oil change done at 1k miles to get all the crap out of the engine that may have been left from manufacturing and the metal from parts mating. These metal particles are too small for the filter to pick up.

Mach 1

I believe its a 3.5 non ECO? if it is then 5w-20, ECO=5W-30
I wouldn't run anything less then full synthetic here in Texas, heat is tough on Motor oil here. Some of the best oil out there is Pennsoil Ultra platinum but at $24, 5 quarts isn't it worth the difference and it can go extended. the guys are having excellent results with it.

I do Oil analysis every oil change and my oil and filter setup under these Texas hot summers and ECO fuel oil dilution is good for over 10000m OCI.

good luck with it.