| Changes in lubricant properties of used synthetic oils based on the total acid number A Wolak Measurement and control 51 (3-4), 65-72, 2018 | 41 | 2018 |
| TBN performance study on a test fleet in real-world driving conditions using present-day engine oils A Wolak Measurement 114, 322-331, 2018 | 31 | 2018 |
| The kinetics of changes in kinematic viscosity of engine oils under similar operating conditions A WolAk, G ZAjąc Eksploatacja i Niezawodność 19 (2), 260-267, 2017 | 27 | 2017 |
| Changes in the operating characteristics of engine oils: a comparison of the results obtained with the use of two automatic devices A Wolak, G Zając Measurement 113, 53-61, 2018 | 26 | 2018 |
| Identifying and modelling changes in chemical properties of engine oils by use of infrared spectroscopy A Wolak, J Molenda, G Zając, P Janocha Measurement 186, 110141, 2021 | 25 | 2021 |
| FTIR analysis and monitoring of used synthetic oils operated under similar driving conditions A Wolak, W Krasodomski, G Zając Friction 8, 995-1006, 2020 | 24 | 2020 |
| Determination of the content of metals in used lubricating oils using AAS A Wolak, G Zając, W Gołębiowski Petroleum Science and Technology 37 (1), 93-102, 2019 | 23 | 2019 |
| Measuring kinematic viscosity of engine oils: A comparison of data obtained from four different devices A Wolak, G Zając, T Słowik Sensors 21 (7), 2530, 2021 | 16 | 2021 |
| Definition of oil change intervals based on the analysis of selected physicochemical properties of used engine oils W Gołębiowski, A Wolak, G Zając Combustion Engines 57, 2018 | 15 | 2018 |
| Temperature dependence of density and viscosity of biobutanol-gasoline blends D Trost, A Polcar, D Boldor, DB Nde, A Wolak, V Kumbár Applied Sciences 11 (7), 3172, 2021 | 14 | 2021 |
| The influence of the presence of a diesel particulate filter (DPF) on the physical and chemical properties as well as the degree of concentration of trace elements in used … W Gołębiowski, A Wolak, G Zając Petroleum Science and Technology 37 (7), 746-755, 2019 | 14 | 2019 |
| Changes of properties of engine oils diluted with diesel oil under real operating conditions A Wolak, G Zając, M Żółty Combustion Engines 57 (2), 34-40, 2018 | 12 | 2018 |
| Statistical analysis of HTHS viscosity rating of present-day engine oils A Wolak Tribology Transactions 62 (1), 34-41, 2019 | 8 | 2019 |
| Evaluation of engine oil foaming tendency under urban driving conditions A WolAk, G ZAjąc, W Kumbár Eksploatacja i Niezawodność 20 (2), 229-235, 2018 | 8 | 2018 |
| Cold cranking viscosity of used synthetic oils originating from vehicles operated under similar driving conditions A Wolak, G Zając Advances in Mechanical Engineering 10 (11), 1687814018808684, 2018 | 7 | 2018 |
| Zmiany właściwości użytkowych olejów silnikowych w warunkach eksploatacji-analizy FTIR A Wolak Nowoczesne środki smarowe do specjalistycznych zastosowań w urządzeniach …, 2015 | 7 | 2015 |
| Changes in functional properties of engine oils during exploitation–TBN A Wolak, S Hornik Current Trends in Commodity Science: Development and Assessment of Non-Food …, 2015 | 7 | 2015 |
| The use of multivariate data analysis (HCA and PCA) to characterize ashes from biomass combustion M Szczepanik, J Szyszlak-Bargłowicz, G Zając, A Koniuszy, ... Energies 14 (21), 6887, 2021 | 6 | 2021 |
| Heavy metal content in used engine oils depending on engine type and oil change interval J Szyszlak-Bargłowicz, G Zając, A Wolak Archives of Environmental Protection 47 (2), 2021 | 4 | 2021 |
| Experimental Investigation of the Viscosity Parameters Ranges—Case Study of Engine Oils in the Selected Viscosity Grade A Wolak, G Zając, K Fijorek, P Janocha, A Matwijczuk Energies 13 (12), 3152, 2020 | 4 | 2020 |
Grzegorz ZajacUniwersytet Przyrodniczy w Lublinie, Akademia Rolnicza w LublinieZweryfikowany adres z up.lublin.pl
