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In the next 10 days, Beijing will introduce a new mandatory standard for vehicle fuel, marking a significant upgrade in oil quality. It is reported that starting July 1st next year, diesel vehicles in Beijing will be required to meet the Euro IV standard, while gasoline vehicles will follow the Euro III standard. This means that car owners will only be able to refuel with Euro III diesel at gas stations. Despite the popularity of diesel vehicles in Europe, their entry into major Chinese cities like Beijing still faces many challenges.
During a recent journey through the Taklamakan Desert, three reporters traveled in a Jetta SDI diesel car along the 500-kilometer desert road between Luntai and Minfeng in Xinjiang. The journey was challenging, and due to the difficulty of capturing images on the way, they lost formation with the rest of the group and had to rely on bicycles for part of the trip. In the vast, empty desert, silence was overwhelming. When the engine was turned off, an eerie quiet enveloped everything, as if the world itself had stopped. At such moments, the car became the most reliable companion, essential for reaching the end of this second-largest desert in the world.
The route, known as the Thousand-Li Road, is one of the longest desert roads globally. Along the way, the landscape shifted from green vegetation and poplar forests to dead trees standing against the sand and sky. As the team drove through the Tahe River and into the heart of the desert, endless dunes stretched out under the scorching sun. Many participants closed their air conditioners and windows, braving the heat. The cost of building this highway on shifting sands is said to be as high as 110,000 yuan per meter.
This long-distance drive tested both the vehicles and the drivers’ endurance. Over two days, participants demonstrated excellent driving skills and mental resilience, managing fuel consumption effectively. Nearly half of the cars used full tanks to complete the 1,000-kilometer challenge. Among them, six vehicles reached 1,500 kilometers, all of which were Jetta SDI models. One couple from Guiyang, Tang Yongming and Mei Yi, drove an impressive 1,952 kilometers on a single tank, achieving a fuel consumption of just 2.82 liters per 100 kilometers—setting a remarkable record.
Diesel vehicles are known for their fuel efficiency, and this is especially true for luxury models. Audi, a renowned brand, has been a leader in diesel technology since 1976, when it began developing TDI (Turbocharged Direct Injection) engines. The first Audi diesel model equipped with TDI was introduced in 1989. Over the years, Audi has made breakthroughs in four-valve technology, vortex intake systems, and injection systems. It also pioneered the six-cylinder TDI engine, first used in the Audi A8.
Recently, FAW-Volkswagen launched the Audi A6 2.5 TDI, featuring advanced TDI technology. These vehicles have proven their performance during a trip around Qinghai Lake, showcasing low fuel consumption and high power. With a fuel efficiency of 5.2 liters per 100 kilometers at constant speed and a range of over 1,000 kilometers on a full tank, these diesel sedans demonstrate the environmental and economic benefits of diesel technology.
Despite these advantages, diesel vehicles still face challenges in China. Many cities, including Beijing, have restricted or banned diesel cars due to concerns about pollution. However, experts argue that the issue lies not with diesel technology itself, but with fuel quality and outdated perceptions. Improvements in fuel standards, such as the upcoming Euro III diesel in Beijing, could help change public opinion.
China, as the world’s second-largest oil importer, faces growing environmental challenges. Promoting energy-efficient and eco-friendly vehicles is crucial for sustainable development. While diesel cars have long been favored in Europe for their efficiency and lower emissions, they still struggle to gain acceptance in China. But with better fuel quality and advanced technology, the future of diesel vehicles in China looks promising.