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Hello folks Had this analysis done on my vw. It was a sample from the second Oil change since new. Oil has been in service for 11.700km, and one year. I was wondering if the higher aluminium could be from cold starts from a year of use, not to forget the winter months. Oil : German Castrol...

Hello folks... Just had my second analysis done at Blackstone. Car is a BMW 1 series, with a 2.0L diesel engine (Engine type : N47) The thing is, that iron is somewhat high, thou it matches the universal avg. I assume that most owners just stick to the recommended 5w/0w-30, but as you can...