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" Q:  How do you tell the difference between synthetic oil and conventional motor oil? A not so honest service station in my area was found adding regular motor oil, yet charged people for the more expensive synthetic oil. Please let me know if there is a simple way of telling the difference. I am quite sure the reading public would like to know this also.  A: The short answer is there&amp;#039;s no way to tell without sending a sample out for a chemical analysis.  My only suggestion is to watch the technician as he adds product. "^^<http://www.w3.org/2001/XMLSchema#string>
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