Thread: Oil choice for the 6.4
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  #5 (permalink)  
Old 06-29-2009, 08:03 PM
pyro2nite pyro2nite is offline
Compression Ignition Addict
  

Join Date: Nov 2007
Location: Sacarmento CA
Posts: 279
Rotella CJ-4. I keep the oil changed every 5000 miles and don't see any advantage of the syn.
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