Just did my first oil change and the thing i noticed was that i only got about 6 quarts that drained back out. I know it takes 7 quarts, so is there that much that is in the filter? I mean the factory filter was a mess getting off so couldnt really judge how much was in there. It's just that every car I've had that say takes 5 qts, i get almost 5 qts drained back, or our town and country for example takes 6 qts. and i get right below 6 drained out. Why was it a quart low? First post by the way, thanks guys.