What plugs are in it?
Try pulling one of the plugs in the front for diagnosis.
Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.