LUBRICANTS KNOWLEDGE



Lubricants Viscosity Classification

Viscosity - The Society of Automotive Engineers (SAE)

  • Automotive Engine Oil :

Monograde : 10, 20, 30, 40, 50, 60

Multigrade : 0W20, 5W20, 10W40, 15W40, etc.

Winter : 0W, 5W, 10W, 15W, 20W, 25W - Lower better
Summer : 20, 30, 40, 50, 60 - Higher better
  • Automotive Gear Oil :

Monograde : 80, 90, 140

Multigrade : 75W90, 80W90, 85W140

Winter : 70W, 75W, 80W, 85W
Summer : 90, 140, 250

Viscosity - International Standards Organization Viscosity Grade

(ISO VG) Industrial Oils : 10 ~ 1500

Automotive Engine Oil Viscosity

Lubricants Viscosity Comparison