On Mon, 27 Apr 2009 11:04:49 -0400, IQRules    
   wrote:   
      
   >If I use Castrol 5w30 here, is it okay change oil every 10,000 miles?   
      
   Not if you want to keep the vehicle long, unless it is all light duty   
   highway driving (like 90kph (50mph) with no load at 70 degrees F and   
   100 miles or more at a time.   
      
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