Jon,

I have noticed something interesting on my car. I use Mobil1, every 7,500 miles since first change. I top off the oil per the dip stick measurement, then after about 3K the dipstick show 4/6 full instead of 6/6. I add no oil at that point all the way to 7,500 miles with no change at all on the dipstck reading. Now, if I top off, it goes down again and stay there.

On the manual states that over filling oil with increase oil consumption.

I don't know what is going on, but this is the situation. I am 1,500 miles away from the next oil change and it has not used a drop after coming down to 4/6 about 3,000 miles ago.

Some ideas?, I sthe dipstick measurement not properly calibrated in my case?

I use the car 99% highway averaging 80 mph @ about 3,300 rpms most of the time.

Rene
S60 N/A manual '01 21K miles