Viscosity Effects on Engine Wear Under High-Temperature, High-Speed Conditions

McMillan, Michael L.; Rosenberg, Richard C.; Murphy, Chester K.

doi:10.4271/780982

Cited by 14 publications

(2 citation statements)

References 17 publications

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“…The vehicle test was run for 80,000 km with 12,000 km oil interval change on a three lane paved road and 8 km oval shaped track. The vehicle speed was maintained from 112 to 120 km/h and oil sump temperature is between 143 and 149°C [5]. The cylinder bore wear and tear results were also taken to show the difference for each type of engine oil usage in each engine.…”

Section: Studies Have Been Made In 2005 By the Lubrizol Corporationmentioning

confidence: 99%

“…The cylinder wear for this engine was higher than the other engines. The most obvious reading is from cylinder number 2 and 3 which increased in diameter by 427 μm and 518μm [5] [6]. On the other hand, in France, most motorcycle user didn't use the viscosity type set by the manufactures 10W-40.…”

Section: Studies Have Been Made In 2005 By the Lubrizol Corporationmentioning

confidence: 99%

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Effect of Passenger Car Oil Usage in a Motorcycle Engine

Muhamad Abid*,

Roslin,

Abdul Jalal

et al. 2019

IJRTE

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The aim of this research is to investigate the usage of passenger car engine oil into a motorcycle engine by determining the after effect of the lubricant to the engine. The difference between engine oil of passenger car and motorcycle is the friction modifier that is in the formulation of cars engine lubricant. A motorcycle engine has a wet clutch system in the crank case, such engine oil with a friction modifier will decrease the clutch capacity of the system. In this study, three types of methodology tests have been conducted such as endurance test which combined with the fuel efficiency test at the same time, drag test and Ferrography tests that were conducted to determine the amount of contamination in both types of engine oil. The results showed that using a passenger car lubricant on motorcycle engine did not affect the engine compartment and parts. The numbers of metal wear in the used oil of both types of cars and motorcycle were slightly different.

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Section: Studies Have Been Made In 2005 By the Lubrizol Corporationmentioning

confidence: 99%

Section: Studies Have Been Made In 2005 By the Lubrizol Corporationmentioning

confidence: 99%

Effect of Passenger Car Oil Usage in a Motorcycle Engine

Muhamad Abid*,

Roslin,

Abdul Jalal

et al. 2019

IJRTE

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New field and engine test data to demonstrate the wear protection benefits of a unique boundary chemistry (UBC)

et al. 1999

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The wear protection performance of unique boundary chemistry (UBC), both while in the engine and after removal, was tested with reference to commercial API SG, API SH/ILSAC GF‐1, and API SJ/ILSAC GF‐2 quality oils in two 80,450 km field tests, in modified and standard sequence tests, and in radiotracer engine studies. The radiotracer tests of UBC added to an API SJ/ILSAC GF‐2 quality oil replicated previously published results of wear reductions achieved in a comparison of an API SH/ILSAC GF‐1 oil with and without UBC. In extended Sequence IIIE runs, two engines, each lubricated with the same API SH/ILSAC GF‐1 oil, were unable to complete the tests as a result of excessive oil consumption due to hot stuck rings. In contrast, two Sequence IIIE engines lubricated with the same API SH/ILSAC GF‐1 oil treated with UBC completed the extended test without incident, even though the UBC‐treated API SH/ILSAC GF‐1 oil replaced the API SH/ILSAC GF‐1 oil for the first oil drain interval only. A fully formulated SAE 5W–30 oil, which contained a full complement of UBC (20%), met all the requirements of API SH/ILSAC GF‐1 quality and gave very low average and maximum cam and cam plus lifter wear on standard ASTM Sequence VE and IIIE tests. The same API SH/ILSAC GF‐1 oil without UBC gave somewhat higher wear on both tests, but both oils met API SH/ILSAC GF‐1 requirements. Wear metals analysis of a field test of 36 taxicabs, which compared an API SJ/ILSAC GF‐2 quality oil to the same oil treated with UBC for the first drain interval, and also to a UBC‐treated oil at every oil change, showed a reduction in the rate of used oil Fe accumulation for both methods of UBC treatment. This test also revealed a striking impact on Fe levels from Si found in used oil samples during an episode of Si contamination in local gasoline supplies. Finally, in a field test of 10 taxicabs, with parts measured before and after testing, wear reductions were observed in rings and bearings in UBC‐treated cabs compared to those with API SG oil alone.

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History of ASTM Involvement in High-Temperature, High-Shear Oil Viscosity Research

Smith

1989

High-Temperature, High-Shear Oil Viscosity: Measurement and Relationship to Engine Operation

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ASTM involvement in high-temperature, high-shear (HTHS) viscosity research began in December 1977, as a direct result of a request by the Society of Automotive Engineers (SAE). The essence of the SAE request was to develop an HTHS viscosity measurement that correlates with engine performance, either in bearing wear or piston ring wear. The ASTM project began as a task force effort and later grew into a section activity. Initial efforts consisted of defining objectives and developing plans for the cooperative research required. A questionnaire to develop inputs on important issues was sent to engine manufacturers, oil companies, and oil additive companies. The response to the questionnaire provided guidance for the HTHS viscosity program. After considerable debate, the task force changed its objective to focus on the development of an HTHS viscometer. To accomplish this, the task force created three subgroups to channel the efforts in the most efficient manner. The viscometer development groups have accomplished their objectives; three ASTM methods have been written and approved.

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Viscosity Effects on Engine Wear Under High-Temperature, High-Speed Conditions

Cited by 14 publications

References 17 publications

Effect of Passenger Car Oil Usage in a Motorcycle Engine

Effect of Passenger Car Oil Usage in a Motorcycle Engine

New field and engine test data to demonstrate the wear protection benefits of a unique boundary chemistry (UBC)

History of ASTM Involvement in High-Temperature, High-Shear Oil Viscosity Research

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