So after reviewing this whole thread again, there is nothing you can do to stop the consumption (additives etc.) and just keep it "topped up" at the interval your VX consumes? What is the cause? Oil passages, rings? There was mention of a ring change in MY(Model Year) 2000 which may explain the later models not using as much as MY 1999. Also, if the EGR was clogged, I would think that would throw a check engine light fault as well. Deermagnet, Darkwing and Nfpgasmask-What is your consumption? Mine is 1 quart in 500 miles using Castrol Synthetic 5w-30. I am sure the thinner oil does not help and I do not abuse the vehicle. I change the PCV every 1000 miles and change the oil every 5000 miles. The tailpipe does have some soot on it but I figured with 142k, just keep topping it up and it should keep running!!
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