Measurement of Kinematic Viscosity of Engine Oils by Capillary Viscometer (CAT#: STEM-PPA-0002-YJL)

Introduction

Engine oil ensures smooth engine operation through its lubricating and cooling effects; yet, with time and use, it becomes subject to degradation processes. High temperature; solid impurities (such as soot, coke, products of tribological wear of the engine, corrosion products, etc.); and the external ones (moisture, air dust, air, and other gases), as well as shear, oxidation, and nitration processes are some of the key factors contributing to the degradation of engine oil. It is then particularly important to monitor the properties of oil; especially, as its degradation can eventually lead to engine damage or failure. A regular replacement of oil forms an essential part of a car maintenance program. The assessment of oil viscosity makes it possible to select an appropriate interval between subsequent oil changes, which has a significant impact on the operating and maintenance costs (operation and maintenance) .