Everywhere in the world, engine oils are sorted according to SAE J300, the 94-year-old document that governs “Engine Oil Viscosity Classification.” Now J300’s position as a bedrock of the engine oil world is being challenged. Critics say the standard rests on outmoded measurements, is unhelpful to consumers, and needs to be more flexible as technology advances.
These critics– and J300’s many proponents — will get to air their views at an SAE Open Forum next month. Depending on how that goes, says Dewey Szemenyei of Afton Chemical, the world could see changes ranging from tiny tweaks to full-blown revisions in this key standard.
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