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I went to Motorcraft.com and looked under oil for gasolene engines.
I can not find a Motorcraft oil that is listed as wssm2c 961-A1.
How important is this spec? Mobil 1 and Castrol have oil shown to meet this spec.
I can not find a Motorcraft oil that is listed as wssm2c 961-A1.
How important is this spec? Mobil 1 and Castrol have oil shown to meet this spec.
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