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Old 06-23-2009, 07:33 PM   #2
Foster26
 
Drives: 2SS/RS IOM 6SP CGRS #9761
Join Date: Mar 2007
Location: Tuttle, OK
Posts: 294
rings don't seal and valves don't seat very well with synthetic oils. Motors should be broken in with conventional oil as a little wear is needed for these things to happen. I plan on changing mine to Amsoil after 3K miles.
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