Like the title says, my car has started burning oil lately and I'm trying to find the culprit. Last oil change it was about a quart low, this time it was a quart and a half low. I know she's getting old, but that seems really unusual. On top of that, it's been running a little funny since the summer. The idle's a bit high for awhile, and sometimes the acceleration is a bit "jumpy" as opposed to being smooth like it used to. I kind of figured that's just the IACV and had planned on cleaning that out, but could the problems be related? A little while after the problems first started happening my primary O2 sensor went up and I replaced that, but it didn't seem to make a difference anywhere...