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A Comparison of the Performance of Highly Detergent Oils and Highly Dispersant Oils in Natural Gas Engines
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Abstract
Abandonment of the concept that gas engines can be operated economically using straight mineral oils and clay filters and the switch to detergent oils designed for specific use in natural gas engines has been handicapped by attempts to use conventional automotive or diesel metallo-organic detergent oils, and by the attempts to develop ashless oils without investigating all of the parameters and pitfalls associated with the use of ashless dispersants.
At present, the weaknesses of ashless oils can be overcome only through the use of a balanced combination of the proper base stock and certain metallo-organic detergents. Careful analysis of engine operations over relatively long periods of time will demonstrate to the operator that ash from a properly designed natural gas engine oil does not adversely affect engine operations.
It has been our experience that laboratory engine tests are of relatively little use in the evaluation of natural gas engine oils. The real proof of performance is only through extensive field testing in a variety of engines and under a variety of operating conditions. This paper concerns itself with field test work which has shown some of the problems associated with the use of both ashless and improperly designed ash-containing oils in the relatively low and intermediate speed (up to 1250 rpm) engines. These data show conclusively that properly designed detergent (high ash) oils give outstanding performance.
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Authors
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Citation
Floyd, C., "A Comparison of the Performance of Highly Detergent Oils and Highly Dispersant Oils in Natural Gas Engines," SAE Technical Paper 680761, 1968, https://doi.org/10.4271/680761.Also In
References
- Floyd C.M. “A Field Study of Gas Engine Lubricants.” Lubrication Engineering 13 12 647 50
- Floyd C. M. “A Field Study of Gas Engine Lubricants, II.” Mechanical Engineering 81 11 64 66
- Bowman L. O. Ridgeway R. S. “Lubricating Oil Requirements of Large Gas Engines.” Paper presented at American Society of Lubrication Engineers Annual Meeting Philadelphia April 1961
- Floyd C.M. “Factors Affecting Valve Life in Gas Engines.” Paper 63, WA-321 presented to the Oil Gas Power Div. of ASME, Winter Annual Meeting Philadelphia November 1963
- Wiles H. M. “Gas Engine Valve and Seat Wear” Published in SAE SP-271 Engineering Know-How in Engine Design (Part 13) New York: Society of Automotive Engineers, Inc 1965
- Ewing R. C. “Analyzer Eliminates Guesswork, De-lays Major Overhauls by 50%.” March 11 1968
- Lock John K. Cox W. A. “Lubricants for European Diesel Engines - Automotive and Industrial.” Paper 670963 presented at SAE Combined Fuel and Lubricants, Power Plant and Transportation Meeting Pittsburgh October 1967
- Pless Loren G. “Lube Oil Effects on Surface Ignition-A Sleeping Giant.” Paper 776C presented at SAE National Fuels and Lubricants Meeting Tulsa October 1963
- Ridgeway R. S. “Advanced Lubricating Oil Reduces Gas Engine Maintenance Costs.” Paper 64-OGD-5 presented at the ASME Oil Gas Power Div. Conference Dallas April 1964