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Old 01-03-2011, 07:03 PM   #5
Frank M
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Join Date: Mar 2008
Location: NH
Posts: 110
I wouldn't be concerned with having synthetic oil going 10,000 miles before changing it.
Since new, I currently have a VW diesel with 273,000 miles and the engine has never been apart, it burns no oil between 10,000 mile changes (per VW recommendation) with 5w-40 Mobil synthetic.

However it is imperative that synthetic be changed yearly or at the specified interval.

It has been posted on other forums that changing the oil to frequently is not good. Some say the oil takes 3-5000 miles to reach it full potential. Seems to make sense.
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