I did not want to start a new thread but I did test this. Overnight or over a whole week (what this sample is) would be the same which doesn't amount to much oil to make any difference. Car was a 2007 Mkz 153,000 miles, Quaker State 5w-30 Synthetic is what came out @ 8,000 miles on oil. Car was supported at front with jackstands rear tires on ground, drain hole facing rear of vehicle. After initial drain and couple minutes of drip I put a water bottle under and came back to my shop one week later. This is what it collected:
Under 3oz.
Under 3oz.