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Registered
Join Date: May 2002
Location: Portland, Oregon
Posts: 12,669
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Synths are more resistant to thermal breakdown and tend to provide more lubrication (molecules are more "slippery"). If you are like me with a non-turbo motor and change oil every 3,000 miles (about 9-12 months), probably does not matter all that much.
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Harry
1970 VW Sunroof Bus - "The Magic Bus"
1971 Jaguar XKE 2+2 V12 Coupe - {insert name here}
1973.5 911T Targa - "Smokey"
2020 MB E350 4Matic
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