Kinematic Viscosity of Four-stroke Engine Oils

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F12%3A00190051" target="_blank" >RIV/62156489:43210/12:00190051 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Kinematic Viscosity of Four-stroke Engine Oils
Original language description
Six different commercially distributed four-stroke motorcycle engine oils of 10W--40 viscosity class were evaluated. Two of the oils were of semi--synthetic type, four of synthetic type. All oils were assumed to be Newtonian fluids, thus flow curves werenot determined. Oils were cooled to below zero temperatures and under controlled temperature regulation kinematic viscosity (mm2.s-1) was measured in the range of --5°C and +115°C. Anton Paar digital viscometer with concentric cylinders geometry was used. In accordance with expected behavior, kinematic viscosity of all oils was decreasing with increasing temperature. Viscosity was found to be independent of oil density. Temperature dependence was modeled using several mathematical models: Vogel equation, Arrhenius equation, polynomial, and Gaussian equation. The best match between experimental and computed data was obtained for Gaussian equation (R2 =0.9993). Knowledge of viscosity behavior of an engine oil as a function of its tempera
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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