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Studies of Test Methods for Evaluating Two-Cycle Engine Oils
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English
Abstract
In Japan, test methods for evaluating the performance of 2-cycle engine oils have been developed separately by each 2-cycle engine manufacturer. The reason for this is that there are are many differences in engine performance and in lubrication methods.
Evaluation through bench tests is used as a valid method for screening engine oils prior to field tests. Field tests are conducted eventually as the most reliable test method for evaluating the performance of engine oils.
Yamaha Motor, one of the leading Japanese 2-cycle engine manufacturers, developed a “70 min engine test method” in 1963, which can be conducted in a relatively short period of time with good reproducibility. In this paper, several problems regarding Yamaha's 70 min engine test method are discussed.
Citation
Ohgake, R. and Hidaka, T., "Studies of Test Methods for Evaluating Two-Cycle Engine Oils," SAE Technical Paper 720452, 1972, https://doi.org/10.4271/720452.Also In
References
- Ohgake R. “Problems of Two-Stroke Cycle Engine Oil for Separated Lubrication System.” J. of Japan Petroleum Institute 8 2 1965
- Ohgake R. “Problems of Separated Two-Stroke Cycle Engine Lubrication System.” Internal Combustion Engine 4 36 1965
- Ohgake R. “Lubrication of Japanese Two-Cycle Gasoline Engines.” J. of Japan Society of Lubrication Engineers 16 9 1971
- Ohgake R. “Recent Problems of Two-Stroke Cycle Engine Oil.” Summary Report of Round-Table Conference on Lubrication, J. of Japan Society of Lubrication Engineers 16 10 1971
- Naito H. Taguchi M. “Some Development Aspects of Two-Stroke Cycle Motorcycle Engines.” Paper 660394 presented at SAE Mid-Year Meeting Detroit June 1966