Classification
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Alongside with the classification of oil according to the SAE which characterizes oil viscosity, the API classification determines its applicability...
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Alongside the SAE classification that describes oil weight, API determines its applicability to a specific engine. The most common classification...
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Letter W in between two digits is a sign of all-season oil. The first digit is the minimum below-freezing temperature...
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How to Choose Engine Oil Taking into Account the SAE Viscosity Grades? Expert Advice. Viscous-temperature rating of engine oil significantly...