When I got the 30k service, they changed my PCV and my VX is still using oil. I quit using Amsoil because it was getting too expensive to top off all the time and I switched to Mobil 1.

I have been keping track of the oil consumption and it looks like almost 1 qt/ 1000 miles.

Is there anything in writing from Isuzu that states what they feel is "acceptable?"

Don't get me wrong, I love my VX... I just wish it wasn't using so much oil