Fuel impact on emissions oF harmFul components oF the exhaust gas From the ci engine during cold start-up Wpły W paliW a na emisję szkodliWych składnikó W spalin silnika o zapłonie samoczynnym podczas zimnego rozruchu*

The paper presents the results of tests on the compression ignition PEUGEOT 2.0 HDI engine. It was fuelled by commercial diesel oil, B50 blend (50 % diesel oil and 50 % rapeseed oil fatty acid methyl esters), and blend of diesel oil and 5% EKO-V fuel additive manufactured by the INWEX company. The tests were conducted for cold and hot engine. When the engine started up from cold, the temperature of the coolant and lubricating oil was equal to the ambient temperature. In hot engine start-up, the temperature of the engine oil and the coolant was 90 oC. The values of concentrations of the exhaust gas harmful components were measured before the catalytic converter.