I switched mine over to Mobil 1 5W-30 at 10,000 miles (the second oil change). I had my first oil change done at the dealer and I was not happy paying 50 bucks for Pennzoil 5w-30 and an AC Delco filter. So I decided to start doing the oil changes my self and use a higher quality oil and filter (plus Walmart had Mobil 1 for 20 bucks for a 5 qt jug).