What do I do know? I'm thinking of calling the dealer and making them give me an oil filter so I can change it myself. I was looking foward to having all the dino oil out of my engine because this is my second oil change and I used synthetic for my first change but knew there had to still be some dino oil in the engine. What is really bad is the 5.5 quarts of oil were sitting in the car when they changed it. What a bunch of boneheads. If anyone knows a good dealer in Pittsburg, PA then let me know. I'm moving there sometime this month.<p>Corey