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US, Special Report, Americas - AAinnonna - 06-08-2022
This belief does have an element of truth, so let's examine the makeup of natural oils. Crude-based (mineral) oil is made in an oil refinery from natural resources. Crude oil provides the components for all oil-based products, including mineral motor oils. At the refinery, the crude is broken down into different components (like gasoline and kerosene); motor oil is only one of the end products. Crude oil is extremely valuable because it's a non-renewable natural resource -- when we run out, it's gone for good. Motor oils made from paraffin-based crude have a reputation for causing deposits in the engine, because wax is one of its major components. However, oil manufacturers remove as much of the wax as possible during the oil refining process, since the wax offers no benefit to motor oil, but it's valuable for making other products. That said, some wax does remain; it's simply too expensive and inefficient to keep re-purifying the oil to remove all possible traces of paraffin.
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