Acta Univ. Agric. Silvic. Mendelianae Brun. 2014, 62(1), 155-159 | DOI: 10.11118/actaun201462010155

Monitoring of Chemical Elements During Lifetime of Engine Oil

Vojtěch Kumbár1, Josef Glos2, Jiří Votava1
1 Department of Engineering and Automobile Transport, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2 Department of Combat and Special Vehicles, University of Defence, Kounicova 65, 662 10 Brno, Czech Republic

Awareness of engine oil condition is a valuable indicator for assessing the state of degradation of the lubricant. The article deals with monitoring of chemical elements, especially metals and additives, during lifetime of commercially distributed automobile engine oil Castrol Magnatec 10W-40. Engine oil was regarded as a Newtonian fluid. The passenger car Renault Scenic I with petrol engine (four pistons, volume 1,600 cm3) was used to the observed. Lifetime of automobile engine oil has been stated by car and lubricants producers in interval 15,000 km. The samples of automobile engine oil have been taken in suitable intervals - 1,500 km. Only first sample of used engine oil was taken with raid 20 km. The seasons of monitoring were spring and summer. The spectrometer Spectroil Q100 has been used to monitoring of chemical elements in automobile engine oil. Increase contents of metals and decrease contents of additives were observed. The results were modelled using mathematical models with given the values of coefficient correlation R. Linear function as a mathematical model with the lowest number of degrees of freedom was used. Created mathematical models can be used to predict of conditions of engine oil in the same or similar petrol engine aggregates.

Keywords: chemical elements, metals, engine oil, lifetime, spectrometry
Grants and funding:

The research has been supported by the project IP 22/2012 "Monitoring of wear particles and chemical elements in the oils used in agricultural technology", financed by IGA AF MENDELU.

Prepublished online: April 22, 2014; Published: February 1, 2014  Show citation

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Kumbár, V., Glos, J., & Votava, J. (2014). Monitoring of Chemical Elements During Lifetime of Engine Oil. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 62(1), 155-159. doi: 10.11118/actaun201462010155
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