This was my first thought, but I checked. It has to be oil. It was the one on the passenger side, closest to the oil filter. I will double check tranny fluid level, and to see if any oil has mixed in possibly. This whole thing just doesn't make any sense.

Ok, so I changed the oil in my wife's vibe last night for the first time, and drained and replaced the filter. After doing this, I put in the reccomended 3.9 quarts called for in the users manual. I then checked the dipstick, and it seemed to be well over the full mark. I couldn't get a clear readin...