Note that inside of the stock Oil Filter Housing is a Bypass Valve and a Thermostat that controls the oil going into the Oil Cooler.
Any spin on filter that has a bypass valve built into the filter is likely to have a valve the opens way sooner then the Mercedes bypass valve. That means Oil in that particular spin on oil filter would not be passing through the filter element.
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84 300D, 82 Volvo 244Gl Diesel
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