1500 mile oil change or 3000?
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#12
Engine break in oil has the most metalic deposits thus more break down in the oil. A few independant oil labs have shown even in cars with up to 10,000 miles on them show engine break in deposits causing shortened oil life (2-4K miles on synthetic) The same car tested at 50,000 miles was getting 7-8K miles before break down occured. While I have not seen a engine break in oil test my 2 cents say 1500-2K max.