The article discusses the application of synthesis gas from pyrolysis of plastics in petrol engine. The appropriate experimental measurements were performed on a combustion engine LGW 702 designated for micro-cogeneration unit. The power parameters, economic parameters in term of brake specific fuel consumption, and internal parameters of the engine were compared to the engine running on the reference fuel - natural gas and synthesis gas. Burning synthesis gas leads to decreased performance by about 5% and to increased mass hourly consumption by 120 %. In terms of burning, synthesis gas has similar properties as natural gas. Compared with  a more detailed study has been prepared on the effects of angle of spark advance on the engine torque, giving more detailed assessment of engine cycle variability and considering specification of start and end of combustion in the logarithm p-V diagram.
 ARROYO J., MORENO F., MUNOZ M., MONNÉ C., BERNAL N.: Combustion behavior of a spark ignition engine fuelled with synthetic gases derived from biogas, Fuel, 2014, Volume 117, pp. 50-58,
 VERHELST, S., WALLNER, T.: Hydrogen-fuelled internal combustion engines, Progress in Energy and Combustion Science, 2009, Volume 35, pp. 490-527
 POLÓNI M., KÁLMAN P., LACH J., SMIEŠKO Š., LAZAR L., KUNC P., JANČOŠEK Ľ.: Micro-cogeneration Unit with Variable–Speed Generator, International Scientific Event “Power Engineering 2010”, May 18-20, 2010, Tatranské Matliare, High Tatras, Slovak Republic. 9th International Scientific Conference: Energy-Ecology-Economy (EEE) 2010, Proceedings on CD, ISBN 978-80-89402-23-6, Paper address: CD/files/Eee/5/4, 22 pages.
 CEVIZ M. A., ÖNER I. V., KAYA F., KARACALI T.: Analysis of the thermal efficiency and cyclic variations in a SI engine under lean combustion conditions, Journal of Thermal Science and Technology, 2011, pp. 121-127, ISSN: 1300-3615
 CHRÍBIK A., POLÓNI M., LACH J., JANČOŠEK Ľ., KUNC P., ZBRANEK J.: Synthesis gas from pyrolysed plastics for combustion engine, Scientific proceedings 2015, Faculty of Mechanical Engineering, STU in Bratislava, ISSN 1338-1954, ISSN 1338-5011 (online version)
 KLEIN M.: A specific heat ratio model and compression ratio, PhD. Thesis Linkoping 2004, Division of Vehicular Systems, Linkoping University, Sweden ISSN 91-7373-992-8, ISSN 0280-7971 (online version)
 DANIŽ M., KÁLMAN P., POLÓNI M.: Simulation of parameters of internal combustion engines, Strojnícky časopis (Journal of Mechanical Engineering), 59, 2008, č.5-6, STR. 291-304, ISSN 0039-2472
 YUSAF T., AL-ZUHAIR S., AL-ATABY M.: Performance of diesel engine using an emulsion of biodiesel-conventional diesel fuel, Strojnícky časopis (Journal of Mechanical Engineering), 56, 2005, č.3, STR. 137-142, ISSN 0039-2472