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Old 05-31-2009, 10:12 PM   #16
fastfred67
 
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Drives: 67 SS RS
Join Date: May 2009
Location: Tyler, TX
Posts: 14
Thanks. My 67 is sweet , but it has real raw hp under the hood the old fashioned way. What I read about the LS 1 is that you should us regular oil for the break-in up to 1500 miles so that every thing wears in correctly and the rings seal up tight, then go to synthetic oil. The manual says I have synthetic oil frm the factory. I' m ready to dump it now and use conventional oil to 1500. Apparently synthetic oil does not aid wear-in very well at the beginning when wear-in is most important. Make sense?
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