Engine Oil Viscosity and Bearing Wear: Field Test Results

Demmin, R. A.; Girshick, F.; Schilowitz, Alan M.

doi:10.4271/922342

Cited by 10 publications

(1 citation statement)

References 18 publications

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“…Also, lubricating film is restored in each cycle, thus this could be considered a lubrication open-cycle, where the film is completely extinct and oil is constantly renewed [22]. On the other hand, since journal bearings tribological operation range is more restrained, they are specially designed to perform in the hydrodynamic range, with reduced friction coefficient and wear response [23], [24]. Since journal bearings tribology is one of the most advanced research topic in this area, the application of the elastohydrodynamic theory is presenting more accurate results to predict bearings friction and wear [25], [26].…”

Section: Tribology and Wear Related To Low-viscosity Oilsmentioning

confidence: 99%

Low viscosity engine oils: Study of wear effects and oil key parameters in a heavy duty engine fleet test

Macián

Tormos

Ruíz

et al. 2016

Tribology International

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Low viscosity engine oils (LVO) are considered key contributor for improving fuel economy in internal combustion engines (ICE). Attending that the use of LVO could imply a variation in tribological states found in ICE, this work's aim is to test LVO in real fleet, with emphasis on engine wear and oil key performance indicators. This test comprised 39 buses, two engine technologies and four different lubricants. For each sample, the elemental composition of the wear debris by ICP-AES and HTHS viscosity of the oil were measured among other properties. The results showed that, with a correct oil formulation, there is no significant difference when using LVO in terms of engine wear, HTHS viscosity variation and oil consumption.

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