My OB 3.6 limited is about 3 weeks old. I have been following the engine break in as per the manual. At about 850 miles I checked the oil and it was down a quart. I put in a quart of 5W -30 conventional oil. Is this normal? Is this because of the engine break in. I hope the engine does not burn oil. I plan on getting the oil changed at about 2000 miles. The dealer gave me a free oil change at 3 months. I had a 2000 VW Passat V6 that burned oil, it was a big problem. Any thoughts would be appreciated.