Oil filter VALVOLINE or AC DELCO

Get the afm tuned out. And use ONLY full synthetic oil and a ac Delco filter. Mine has 232,000 and has been super reliable and still runs like new

7 Qts. Mobil-1 5W-30 Standard Full Synthetic, 500 mL bottle Rislone Engine Treatment, ACDelco PF61E. That's what I've used for all of my oil changes I've done on my 2008 and I've had absolutely no problems.

OEM AC Delco

Have a look at Valvoline restore and protect which is also for high mileage vehicles. Also grab a few oil filters, as the product does such a good job, you'll want to replace the oil and filter, do a few good long drives in the first weeks/month, replace the filter, do it again over the next few months, replace the filter, and keep that for the rest of the year ( maybe check the filter just in case ), and you'll see just how well it does.

Valvoline synthetic with oem filter.

Been using just regular t4 Rotella and AC Delco filters on all of my diesels since 2011. No complaints

Switched between fram and ac delco. Sticking to ac delco due to a tsb. Oil pressure issues.

Ac delco/delphi quality has been getting really bad. There’s a cheaper line of products that are all Chinese and then a higher level. I stopped using their oil filters when the threads were completely off for my 3800.

I changed the oil with an AC Delco PF66 filter. Turned on the car and it instantly started spewing oil. Immediately turned it off. Oil sprayed through the cracks in front grill/bumper panel on passenger side.

Their most recent mistake cost me my entire vehicle. They put my oil filter cover on without an oil filter. This caused debris from less than three months to create enough friction to blow a piston arm in my engine.