Diagnose it
A noise, a leak, a light. Ask in plain words and get an answer for your exact engine, not a forum thread.
Burning a quart of oil per 1,000 miles — normal for a tuned STI?
Not normal, but known. EJ257 at Stage 2: ringland wear is the usual culprit when consumption climbs with boost.
Do a compression and leak-down test before anything else. Your last plugs were 14k ago — pull #4 and check the electrode for oil.


