Analysis of Lubricating Oil Deterioration in Four-Wheeler

Abstract

Lubricating oil used in vehicles deteriorates over the period of use, due to various causes. These include, high temperatures, great variety of contaminants like carbonic acid etc [1]. Deteriorated oil must be changed periodically, to ensure smooth performance of vehicle. Changing the lubricant too early, cause inefficient use of already depleting resources, also unwanted impact on environment. However, changing the oil too late may affect vehicle performance. Hence to compromise between these two necessities, optimum oil change point must be found.

NMR relaxometry analysis of molecular degradation in internal combustion engine lubricants

“…This is essentially the main reason of why condition monitoring technology for ICE lubricants turned to be a topic of increasing interest at both academic and industrial sectors. [3][4][5] Most important and commonly used methods to sense quality and degradation of lubricant oils include Fourier transform infrared (FTIR) spectroscopy, [6][7][8] high-pressure differential scanning calorimetry, [9] bulk oil oxidation stability, [10] cinematic viscosity, [11] total basic and acid number, and metals by atomic absorption spectroscopy and gas chromatography. [12] Also, nuclear magnetic resonance (NMR) spectroscopy is often used to analyze lubricants.…”

Preliminary Study of pH Sensor for Engine Oil Deterioration Detection Using Anodized Ta2O5 Nanotubular

“…Several attempts have been made to develop engine oil deterioration sensors for rapid detection of oil properties. Previous researchers have agreed that the parameter that can be used to detect engine oil quality is in terms of total acid number [2][3] [4], oil viscosity [5][6] [7][8] [9], oil acidity [10], oxidation index [4]. The output of oil deterioration detection can be measured by its capacitance, transmittance, and conductivity.…”