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Originally Posted by Frank M
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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I have to disagree here. Following the manufacturer's (Porsche) change interval here is a very bad idea and 10,000 miles is twice the recommended mileage for Boxsters. Also your VW TDI is a very different machine than the M96. You can't compare them at all.
And wouldn't the oil have its full potential when it's new, not when t has 5000 miles?