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Synthetics in an old engine?

From: Boondox
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Date: April 23, 2003


Brian brought up another issue. I've been told by MANY mechanics that switching to synthetics in an old or high mileage engine is not a good idea due to sloppy (by today's standards) tolerances and wear. More leakage, they say. Or is this yet another Old Mechanic's Tale? Pete


Last changed: July 19, 2018