Thread: what is the best oil for flat tappt engine?????
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Old 05-09-2007, 04:56 AM
  #16  
billhendren
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Join Date: Dec 2005
Location: Rutherfordton North Carolina
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We use the Joe Gibbs XP3 oil with great results, Royal purple max 41 is also very good.the Mobil One was a good deal until they changed the additive package last year and we started seeing a lot of roller lifter failures.Bill
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