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Old Jul 14, 2012 | 11:11 AM
  #23  
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rs_traynor
stage4 2wd cosworth
 
Joined: Oct 2007
Posts: 3,773
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From: Cossie Central
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iv always wondered whats best, theres alot of mixed thoughts on it where it be 50 or 60.

im just about to give the cossie a major service before silverstone... so 10w-50 is the way forward?
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