What ISO or SAE Mongrade or Multigrade ending Grade Am I?

Instructions: Please select a temperature and then a viscosity value before clicking calculate to determine the closest ISO or SAE grade. With SAE the grade may meet more than one spec and also note SAE 250 has no maximum value, but we have set at 100 so the graph doesn't go on forever. Clicking a bar chart item will give the upper and lower limits. The matching grade(s) will be differently coloured on the bar chart.

The viscosity was measured at with a value of mm2/s.

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