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Old November 21st, 2017, 13:59   #3446
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Join Date: Nov 2014
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Originally Posted by TooSlick View Post
Trying to fix mechanical problems by switching oils simply does not work.You need to find the root cause(s) of the issue and address those. As a general rule I would not exceed VW's recommended service interval of 10k miles, unless you "step" up service intervals gradually - say in 2k increments - supported by used oil analysis.
I completely agree- assuming there is a mechanical problem. If coolant hasn't been disappearing, I wouldn't be convinced that coolant contamination of the oil is the issue. The aluminum wear is high, but the iron wear is about average on a per mile basis, according to Blackstone. Another thing to consider is that it doesn't take much contamination of the oil sample to skew numbers significantly when measurements are in parts per million.
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