Abstract
Lubricants can contribute to save energy by adjusting viscosity and friction characteristics. In generally, it is attained by decreasing the viscosity. However, thoughtless decreasing viscosity can lead to machine troubles, such as seizure or wear, by the shortage of oil film strength. Therefore, lubricants are requested to improve extreme pressure performance and reduce friction. Energy-saving hydraulic fluid which we developed shows low friction coefficient. Therefore, it can reduce more electricity consumption than marketing oil in vane pump bench tester. In actual equipment, it shows 7% of energy-saving effect. Energy-saving gear oil shows high extreme pressure performance and high fatigue life. It can extend the machine life. In actual equipment, it shows 10% of energy-saving effect in same viscosity grade, and shows 19% of energy-saving effect in lower one viscosity grade.
