biostudies-literatureKuang XScience and Technology Project of Nantong CityNatural Science Research of Jiangsu Higher Education Institutions of ChinaHigh-level Talents Research Start-up Fund supported by Jiangsu Shipping CollegeQinglan Project of Jiangsu Province of ChinaNatural Science Foundation of Jiangsu Provincee0307394https://www.ebi.ac.uk/biostudies/studies/S-EPMC11329151biostudies-literatureUnknown19(8)The basic tribological experiments have reported that nano-graphene lubricating oil has excellent anti-friction and anti-wear properties, which has been widely concerned. However, the real anti-friction effect of nano-graphene lubricating oil and its impact on engine power performance, economic performance and emission performance remain to be proved. This has seriously hindered the popularization and application of nano-graphene lubricating oil in the engine field. In this paper, nano-graphene powder was chemically grafted to prepare nano-graphene lubricating oil with high dispersion stability. The influence of nano-graphene on physicochemical properties of lubricating oil was studied, and the influence of nano-graphene on engine power performance, economic performance and emission perforPloS onePerformance evaluation of nano-graphene lubricating oil with high dispersion and low viscosity used in diesel engines.PMC11329151HYRC/202411BK2023122723KJB460009HYRC/20240723KJB470006JC22022066Yang XLi SKuang RBian HHu NKuang XfalsePerformance evaluation of nano-graphene lubricating oil with high dispersion and low viscosity used in diesel engines.The basic tribological experiments have reported that nano-graphene lubricating oil has excellent anti-friction and anti-wear properties, which has been widely concerned. However, the real anti-friction effect of nano-graphene lubricating oil and its impact on engine power performance, economic performance and emission performance remain to be proved. This has seriously hindered the popularization and application of nano-graphene lubricating oil in the engine field. In this paper, nano-graphene powder was chemically grafted to prepare nano-graphene lubricating oil with high dispersion stability. The influence of nano-graphene on physicochemical properties of lubricating oil was studied, and the influence of nano-graphene on engine power performance, economic performance and emission perfor2024-01-01T00:00:00Z20242025-04-26T21:19:03.515Z2025-04-06T16:48:00.159ZS-EPMC113291513915095410.1371/journal.pone.0307394