High silicon where to look
Series 60 d dec4. My silicon usually runs about 4-8. My last two oil samples have been around 25. I've checked the air filter, air box, and all the connections between the air box and turbo. What else should I check? Could a leaking charge air cooler or the intake manifold gasket be the problem. Any help on how to test or troubleshoot this problem would be greatly appreciated.
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