I checked my '07 6 cylinder's oil level the other day and was concerned that it was quite a bit higher than the top dot on the dipstick. I had changed the oil about 8000 miles ago with mobil1. I drained about 1 qt and the level was now between the dots on the dipstick. I went ahead and did another oil change today with mobil1. The amount of oil removed was a little less than 5 qts, not the 6 that I would have suspected. Then, after installing a new filter, it only took one 5qt container to bring the level back to midway between the 2 dots on the dipstick.I thought this engine took 6.5 qts with filter change? I wonder if I had previously put 6.5 qts in it without checking the dipstick.