Thread: Engine oil grades
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  #16  
Old 12-18-2005, 08:53 PM
Brian Carlton Brian Carlton is offline
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Location: Blue Point, NY
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Quote:
Originally Posted by Craig
According to Mobil's web site, it looks like they are recommending a maximum 6 months for their synthetics:

http://www.mobiloil.com/USA-English/MotorOil/Car_Care/AskMobil/Recommended_Oil_Change_Intervals.aspx

What happens after six months? Does the oil somehow deteriorate while sitting in the crankcase?
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