I have been experiencing engine oil consumption about 3/4 to 1 quart of oil around 3000 miles. I found the source, at least to my MDX. If your MDX is consuming oil, you may want to double check it. I found out when I replaced the antifreeze over the weekend. Initially, I thought the driveshaft boot was black, not until I touched it and the black residue came off revealing the driveshaft to be gray. I attached the photo...take a look. It is the upper oil pan. The bolt is a 14mm with a washer. You cannot put a socket wrench in there. I tried to tighten it with a combo-wrench, not sure it was tightening it. I cleaned the area and if I see oil residue again, I bring it to the dealer to have them tighten it.
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