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Iü¬l 99, at 4:13, john virtanen wrote: > What causes fresh oil to get dirty and black quickly? ( 600 miles) When you changed your oil, you didn't get ALL the old oil and dirt out. So when the fresh oil mixes with it, and especially after it is run around a bit while warm, it picks up enough to LOOK dirty rather quickly. In reality, it's not really that dirty, it just shows up quickly, and later in its life the additional dirt makes changes that are not nearly so obvious. The actual rate of production of carbon and wear products is pretty constant. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org