Marshall Booth wrote: > one VW diesel owner did not CHANGE his Mobil 1 oil for 60kmi and > when it was finally changed it was still "honey" colored and the TBN had > not dropped more than about 50%. Problem was that he had to change the > filter at least every 2500 miles or the filter would occlude, and with > each filter change, a qt of fresh oil had to be added. The actual cost > for the 60kmi was only about $10-12 less than if he had change the > oil/filter in the conventional way - and there was the labor and > disposal problems of changing the filter every 2500 miles (24 times) for > 60kmi of driving.
Just to play devil's advocate: A VW diesel holds 4 quarts of oil. He effectively did six oil changes in that 60,000 miles, one quart at a time.
