Lubricant oil test as base on engine maintenance / Mohd Fairus Mustafa and Saidi Salim @ Abdullah

An experimental study of lubricant oil which relate to an engine maintenance is carried out. In this case, we could apply the same analogy of a doctor to check the disease of his patient. By analyzing of the urine, he could know the type of disease and able to give the suitable treatment for his patient. Similarly, to check the performance of an engine, we could analyze through the lubricant oil which have been used in the engine. From the analysis, the condition of the engine can be known and therefore an effective maintenance is obtained. One of the reasons for reduced performance of an engine is due to low quality of lubricant oil. This test is conducted using motorcycle model Honda C70, running on the road for accumulated duration of 50 hours. Almost similar test was conducted on Produa Kancil 850 for running at 400 hours respectively. Ferrographic, spectrometric and viscosity were analyzed for engine diagnostic. Some of the properties of lubricant oil will be observed. The engine performance and maintenance will be decided from the observation. For this case of study, investigated parameters will include viscosity and wear particles of the lubricant oil.