Hey guy's I have a 2007 V8 4.8 K1500 (New Body) Silverado. Just bought the Truck and it has the Penzoil Ultra Synthetic (Most Expensive from Wal*Mart) and my check engine light just popped on and think it might have something to do w/ it. Anyway I want to get the Synthetic Oil out and give it a oil change. What oil Filter should I look for? By the way it is the correct oil. SEA 5W-40 I believe.
