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Old 04-26-2010, 09:55 AM
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Cormacs Cormacs is offline
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It can tell what viscosity the oil is by useing the oil pressure switch and the oil temperature sensor. It is a inacurate reading that is mainly used to tell if a person put the wrong oil in the truck since viscosity is extremely important with the MDS system. But they don't use viscosity in the oil change calculation.
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