Macian Martinez, Vicente; Tormos Martínez, Bernardo Vicente; Gomez Estrada, Yesid Antonio; Bermúdez, Vicente(Federación de Asociaciones de Ingenieros Industriales de España (FAIIE), 2013)
[EN] In this study, a representative sample of urban buses, powered with CNG and diesel engine technologies and working on urban duty operation, have been
studied in order to evaluate engine oil evolution of degradation. ...