Comparative Analysis of Fuel Consumption, Engine Power and Operating Costs of Passenger Cars Using Gasoline and Cng
Year: 2026
Type: article
Abstract: : Abstract. The growing number of motor vehicles and the resulting increase in harmful emissions have intensified the need for environmentally friendly and economically efficient fuels. This study investigates the operational characteristics of passenger cars running on gasoline and compressed natural gas (CNG). Experimental studies were conducted at the laboratories of Andijan Avtotekhizmat LLC, Mukammal Avtoservis LLC and Andijan State Technical Institute. Three passenger car models widely used in Uzbekistan, namely Nexia R3, Gentra and Cobalt, were selected as research objects. The main operational indicators, including fuel consumption, engine power and operating costs, were analyzed using brake dynamometer equipment. The results showed that the use of CNG significantly reduces fuel expenses compared to gasoline. Economic calculations revealed that the operating cost of vehicles running on CNG is approximately 71.4% lower than that of gasoline-powered vehicles under similar conditions. At the same time, a slight reduction in engine power was observed due to the physical properties of gaseous fuel. The findings indicate that compressed natural gas is an economically viable and environmentally sustainable alternative fuel for passenger vehicles. The use of CNG contributes to lower fuel costs, reduced harmful emissions, extended engine service life and longer maintenance intervals. Despite the increased complexity of the fuel supply system and higher safety requirements, the overall advantages of CNG make it an effective substitute for conventional gasoline fuel.
Source: HSR (London)
Language: English
Topic: Engine and Fuel Emissions
Subfield: Automotive Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7220151665