I have ran into a issue where my crankcase breather line that runs into the intake is picking up alot (enough to be noticable but not oil consumption issue yet) of oil from the crankcase.

1993 mustang LX 2.3l automatic convertible, not sure if it has 140k miles or 240k I rolled it over once under my ownership but unknown if it had rolled over when I got it being only 5 milage trackers on the odometer not counting the point miles line.

I noticed it was oily around the crankcase breather...

1993 mustang LX 2.3l auto, PCV/ crankcase breather issue