2006 Toyota Corolla Q&A
2006 Toyota Corolla Question: Why do I need to keep adding oil?
try putting an oil additive in it with your next oil change - goodguy
Have it checked at a shop , where they can put it on a lift to check for signs of leaks , before you damage the engine. May be a leak that only happens under pressure and blows back off the bottom while driving and not accumulating enough to leave a puddle when stopped. - ziptie12