Artificial Intelligence
Energy-saving and environment-friendly advanced diesel engine technology is valued by the international market
In recent years, the global automotive market has experienced significant growth. According to forecasts from international agencies, the total size of the market is expected to grow by 39% over a 15-year period from 2001 to 2014. During this time, gasoline vehicles are projected to increase by 23%, while diesel vehicles are anticipated to rise by an impressive 97%. This sharp contrast highlights the growing importance of diesel technology in many regions.
Diesel vehicles have gained widespread attention due to their fuel efficiency and ability to meet strict emission standards. Many countries, especially in Europe, the U.S., South Korea, and India, have actively promoted diesel vehicle development. These nations recognized early on that diesel technology could play a key role in energy-saving strategies. For example, the European Union has consistently supported both advanced diesel and gasoline technologies to improve the efficiency of conventional vehicles. In the U.S., the government shifted its stance on diesel in 2005, with President Bush emphasizing that increasing the share of diesel cars to 20% could save 300,000 barrels of crude oil daily. Tax policies were also introduced, with some countries offering lower tax rates on diesel to make it more attractive compared to gasoline. In South Korea, for instance, diesel prices are only about 75% of those for gasoline.
Despite being 10–15% more expensive upfront, diesel vehicles offer lower operating costs, which contributed to their rapid adoption in the early stages. Some governments even provided purchase incentives or tax rebates. The U.S., for example, allowed a tax refund of up to $3,400 for diesel car buyers between 2006 and 2010. While policies varied across countries, those in early stages of development, like the U.S. and South Korea, saw stronger support.
In China, diesel vehicles currently account for just 23.7% of total car ownership and a mere 0.2% of new passenger car registrations. In the first quarter of 2005, only 1.3% of new cars were diesel, far below the EU’s 50% level. If we project that by 2020, diesel vehicles could reach 10%, 20%, or 30% of passenger car ownership, the impact would be substantial. This could result in saving 9.36 million, 18.87 million, and 28.37 million tons of crude oil respectively, reducing overall oil consumption by 3.3%, 6.7%, and 10.1%, as well as cutting oil imports by 3.7%, 7.5%, and 11.3%.
A high-level implementation plan could lead to even greater reductions, with external oil dependence falling by more than 10%. From a supply perspective, there are no major constraints limiting diesel availability, making it a viable option for energy security.
While new energy technologies such as fuel cells, hybrids, electric vehicles, natural gas cars, and alcohol-powered vehicles continue to gain traction, experts agree that internal combustion engines will remain dominant for the foreseeable future. By 2020, traditional internal combustion engine vehicles are expected to account for around 30% of the market, with advanced engines and hybrid models making up about 65%. The remaining 5% will consist of fully electric and fuel cell vehicles. However, fuel cell technology is still in the early stages of industrialization.
Given this landscape, China’s automotive energy strategy should embrace technological diversity. Two key goals should be pursued: first, continuously improving the fuel efficiency of traditional vehicles through advanced diesel and gasoline technologies; second, promoting alternative fuels and new energy vehicles, including hybrids and electric models. A balanced approach will ensure long-term sustainability and energy independence.
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