My son has same truck. Used Penz. Platinum Ultra 0w-20 every 7000 miles. 144,000 no engine problems. Changed trans fluid and filter every 30,000 miles Trans. went out 144,000 miles no towing lots of highway miles. What a bummer.
Onetime I was standing in the oil department at Autozone when a gentleman next to me had his Ferrari owners manual in hand and was looking for Shell Helix motor oil.
We shipped vehicles several times from AZ. to FL. If you call one of the low cost shippers they just bid it out to an independent driver. That is A guy with A dually pick-up and A trailer that holds 4 vehicles. You are at their mercy. We heard it all truck broke down bad storm ETC. If you call...
I had A delaminating tire on my 2007 Malibu. Discount balanced all 4 tires said they were O.K.Same problem. Went to my repair shop they said tire was bad, it was. Had to go back to Discount and buy new tire.
My son has been using PUP 0W-20 in his 2014 GMC Sierra 5.3 with AFM. 146,000 miles he has had no problem with stuck lifters or cam damage. We do change it every 5,000 miles. We do not wait for the OLM to go off. I think PUP is helping avoid all the problems you hear about with Active Fuel...