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Reply to "Rejection limits of viscosity of 15W40 oil?"

SAE has given the lower and upper limits as 12.50 cSt minimum and 16.30 cSt maximum for the 15w40 oil grades. Also as per the ASTM D6224 warning level for in-service engine oils the limit is given as plus or minus 10% of the new oil.The Kinematic Viscosity is the fluids resistence to flow under gravity at specified conditions.While Absolute Viscosity is the product of Kinematic Viscosity and density of that oil.
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