Recent content by ahpyors

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    Homogenized?

    Motor oil and transmission oil: Synthetic oil has a number of additives, and they do not all weigh the same. If the oil has been on the shelf for a long time (say 3 months), do some of the additives settle to the bottom? float to the top? so that the container needs to be shaken before use...
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    Change based on age of oil or mileage?

    My wife drives our 2008 ML 320 CDI about 5,000 per year, and the suggested oil change mileage is 7,500 miles. Should it be changed semi-annually, annually, or just ignore time and go by mileage?
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