Lubricant viscosity and viscosity improver additive effects on diesel fuel economy

Margareth Judith Souza De Carvalho, Peter Rudolf Seidl, Carlos Rodrigues Pereira Belchior, José Ricardo Sodré

Research output: Contribution to journalArticle

Abstract

This work verifies the impact of lubricant viscosity and viscosity improver additives on diesel fuel economy. Eight lubricants were tested in a single-cylinder, four-stroke, direct injection diesel engine mounted on a dynamometer, under different load and speed conditions. Engine friction power was also investigated through Willans’ line. The results demonstrate that fuel economy obtained from multigrade viscosity oils is higher than that obtained from monograde viscosity oils. A linear relationship was obtained between the high temperature high shear viscosity and specific fuel consumption. The lubricant which provided lower fuel consumption also required lower friction power.
Original languageEnglish
Pages (from-to)2298-2302
JournalTribology International
Volume43
Issue number12
DOIs
Publication statusPublished - 1 Dec 2010

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diesel fuels
economy
Fuel economy
lubricants
Diesel fuels
Lubricants
Viscosity
viscosity
fuel consumption
Fuel consumption
Oils
Friction
friction
oils
Shear viscosity
Dynamometers
Direct injection
dynamometers
Engine cylinders
diesel engines

Cite this

Souza De Carvalho, Margareth Judith ; Rudolf Seidl, Peter ; Pereira Belchior, Carlos Rodrigues ; Ricardo Sodré, José. / Lubricant viscosity and viscosity improver additive effects on diesel fuel economy. In: Tribology International. 2010 ; Vol. 43, No. 12. pp. 2298-2302.
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Lubricant viscosity and viscosity improver additive effects on diesel fuel economy. / Souza De Carvalho, Margareth Judith; Rudolf Seidl, Peter; Pereira Belchior, Carlos Rodrigues; Ricardo Sodré, José.

In: Tribology International, Vol. 43, No. 12, 01.12.2010, p. 2298-2302.

Research output: Contribution to journalArticle

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