New oem pcv valve may help but I think you already did that based on previous posts. Some 5w30 Maxlife Red bottle may help. Others on here have reported better results with it. Maybe even put in a quart of 10w40 Maxlife to slightly thicken the fill. WM sells it for 4 a quart.My Accord does something similar. It burns a quart every 1k and it gets dark very quickly. I assume there is some blowby and oil control ring issues causing the burning. Given the mileage of my engine, it does not really concern me. I change the oil per the OLM and just top off as needed. I've used many different types of oils and viscosities and nothing matters. In my experience, HM oils help for leaks but not much for burning, FWIW.