Abstract:
The objective of this research is to obtain a model for estimating the degradation of the engine lubricating oil, instead of the engine manufacturer recommendation [interval method].
The model was achieved by experimental data obtained from the analysis of the used lubricating oil during its useful life as applied on three trucks. The model was built by using the relationships between the changing of the oil parameters and the engine operating conditions specifically the engine coolant temperature .The oil analysis was initially conducted under regular interval during truck running at the end of each trip.
The model output results gave more understanding on how to use and extend the life time of lubricant oils.
The model findings indicated that the oil can be used in these trucks for 15,000km approximately as opposed to the previous 8,000km (as of owner regulation) and 10,000km (as of manufacturer recommendation).
