Thread: engine oil
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Old 02-04-2011, 08:05 PM
  #6  
kwkracing
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RACING JUNKIE
 
Join Date: Dec 2004
Location: austin texas
Posts: 729
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I run half valvoline and rotella diesel oil with a cup of marvel mystery oil in all of my blown engines. The viscocity varies, but usually a straight weight 50 or 60. All my blown engines have the clearances on the loose side.
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