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Old 04-04-2013, 05:33 AM   #39
FF
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"In fact a case could be made for changing the filter once halfway through the season keeping the same oil, in view of the fact that the solid contaminants are filtered out in the filter,"

However much of the engine wear is not caused by the coarse chunks the std oil filter removes , but by the "fines" (tiny as valve grinding compound) that freely circulate in the oil.

Solution ,secondary centrifugal filter to spin them out, by pass filter that is better at removing the fines , (but use a filter not a roll of toilet paper) , OR , simply change the oil.

All modern oil is detergent oil so only change the oil after a long hard run so the chemicals have time and temperature to loosen the collected grunge and capture it in the oil.
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