Comparative study of characteristic of lubricant oils in gasoline and compressed natural gas engines

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14 Citations (Scopus)

Abstract

In the era where the world is heading for depletion of crude oil, natural gas has emerged as one of the alternative fuels for automotive vehicles. Many automotive vehicles adopt natural gas in form of compressed natural gas (CNG). However, using natural gas directly in an engine designed for gasoline can lead to faster degradation of oil characteristics, which leads to substantial impact on friction and wear of the engine. Hence, this paper performs a comparative study on the quality of lubricant oil in gasoline and CNG fuelled engine of the same specification. The lubricant oils used in this work were the 10W-40 semi synthetic oil, the 15W-50 oil and the 20W-50 oil. The tests were conducted on each lubricant are oil sump temperature during engine operation, oil viscosity, total acid number (TAN) and multi-element oil analysis. The entire oil tests were performed for the variation of engine speeds of 1500 rpm, 2000 rpm, 2500 rpm and 3000 rpm during the four- hour engine running. The test results confirmed that the most suitable lubricant oil for both the gasoline and CNG engines was the 10W40 semi synthetic oil since it has lower increment of viscosity and lower TAN. With the presence of high level of the elements oil such as Fe and Pb, these elements can indicate damages to the engine components.

Original languageEnglish
Pages (from-to)282-293
Number of pages12
JournalEuropean Journal of Scientific Research
Volume30
Issue number2
Publication statusPublished - 2009

Fingerprint

gas engines
Natural Gas
Compressed natural gas
Lubricants
Gasoline
lubricants
Gas engines
natural gas
gasoline
lubricant
Comparative Study
comparative study
Oils
Engine
oils
oil
engine
engines
Engines
Viscosity

Keywords

  • Natural gas
  • Oil temperature
  • Total acid number
  • Viscosity

ASJC Scopus subject areas

  • General

Cite this

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abstract = "In the era where the world is heading for depletion of crude oil, natural gas has emerged as one of the alternative fuels for automotive vehicles. Many automotive vehicles adopt natural gas in form of compressed natural gas (CNG). However, using natural gas directly in an engine designed for gasoline can lead to faster degradation of oil characteristics, which leads to substantial impact on friction and wear of the engine. Hence, this paper performs a comparative study on the quality of lubricant oil in gasoline and CNG fuelled engine of the same specification. The lubricant oils used in this work were the 10W-40 semi synthetic oil, the 15W-50 oil and the 20W-50 oil. The tests were conducted on each lubricant are oil sump temperature during engine operation, oil viscosity, total acid number (TAN) and multi-element oil analysis. The entire oil tests were performed for the variation of engine speeds of 1500 rpm, 2000 rpm, 2500 rpm and 3000 rpm during the four- hour engine running. The test results confirmed that the most suitable lubricant oil for both the gasoline and CNG engines was the 10W40 semi synthetic oil since it has lower increment of viscosity and lower TAN. With the presence of high level of the elements oil such as Fe and Pb, these elements can indicate damages to the engine components.",
keywords = "Natural gas, Oil temperature, Total acid number, Viscosity",
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AU - Mohd Ihsan, Ahmad Kamal Ariffin

AU - Muchtar, Andanastuti

AU - Omar, Khairuddin

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