ive been putting 6 quarts in my duratec for the past 3 years that ive had it i baught it with 29,000 miles and im the second owner of the car. never had any problem with a leak. i did put in a new rear main seal while my tranny was out when the new clutch was put in at around 80,000. my oil pan does seem to have oil on it and i see a bit of oil or some black gue on the cylinder heads. i have a new driveway and i dont see any drops on my driveway at all so i guess i have no leaks. i think my oil consumption might have gone up due to the msds headers. i am thinking of putting header wrap on the y pipe under the oil pan.
