I've got a JDM 2.0 STi with an EJ257 block + pan but 2.0 dipstick + tube. I knew something was off after the first oil change. Car reads full after only 4 qts. I've just been adding 4.5qt on changes and then adding another half qt anytime the reading drops close to the F mark.
I just received my new dipstick+tube. Can I change the tube with the pan full or should I wait until the next oil change? I noticed the tube hole on the pan sits fairly high. I guess I'll just wait until the next change. In the meantime I'll try just the dipstick and see how that changes readings.