Do a fresh oil change. Make sure to check the oil once it is warm, and take note of where it is on the stick, and the date you did the change. Check your level every 250mi and record where it is on the stick. Make sure to check it the exact same way every time. Record how much oil you burn in the first 1000mi. Let us know how much you had to add to get to the original level on the stick.
If almost none burnt in 1k mi, keep checking every 250mi. If it starts to burn at some point before 3kmi is up, let us know.
Oil consumption is hard to diag unless you watch it closely, or smoke is blowing out the exhaust or something mega obvious. A little oil in the intercooler is normal. It could be a bunch of things, but I wouldn't worry until you watch one oil change carefully.