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In the next 10 days, Beijing will roll out a new mandatory standard for vehicle fuel, marking a significant upgrade in oil quality. Starting July 1st of next year, diesel vehicles will be required to meet the Euro IV standard, while gasoline cars will follow the Euro III standard. This means that Beijing drivers will only have access to Euro III diesel at gas stations. Despite their popularity in Europe, diesel vehicles still face challenges when entering major Chinese cities like Beijing.
During a journey through the vast Taklamakan Desert, three reporters were driving a Jetta SDI diesel car along the 500-kilometer-long desert road between Luntai and Minfeng in Xinjiang. Due to photography stops, they lost formation with the "Oil Through Thousands of Miles" challenge and had to rely on bicycles. In the desolate, uninhabited areas, silence was overwhelming. When the engine was turned off, it felt 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.
The road is known for its harsh conditions, with extreme heat and limited infrastructure. Most participants used air conditioning and closed their windows to cope with the intense desert sun. The cost of building roads across the shifting sands is extremely high—over 110,000 yuan per meter. The long-distance drive tested both the vehicles and the drivers’ endurance.
Among the competitors, the Jetta SDI models stood out. One pair from Guiyang managed to travel 1,952 kilometers on a single tank, achieving an impressive fuel efficiency of just 2.82 liters per 100 km. This performance highlighted the superior fuel economy of diesel engines.
Luxury brands like Audi have also embraced diesel technology. Since 1976, Audi has been developing TDI (Turbocharged Direct Injection) engines, leading the industry in innovation. Their latest models, such as the Audi A6 2.5 TDI, feature advanced fuel injection systems, offering up to 40% better combustion efficiency than traditional gasoline engines. With a top speed of 220 km/h and a fuel consumption of only 5.2 liters per 100 km under constant speed, these cars are setting new benchmarks for efficiency and performance.
Despite these advantages, diesel vehicles still face prejudice in China. Many people associate them with black smoke and pollution, largely due to older, poorly maintained trucks on the roads. However, modern diesel technology, including direct injection and turbocharging, has significantly improved emissions and performance.
In Europe, diesel vehicles make up over one-third of new car sales, with some countries like France even encouraging their use. In contrast, China has imposed restrictions on diesel vehicles in major cities, citing environmental concerns. However, experts argue that the real issue lies in fuel quality, not the vehicles themselves.
Beijing’s current diesel fuel only meets the Euro I standard, far below what’s needed for newer diesel engines. While the city plans to introduce Euro II diesel by October, many parts of the country still lack the necessary fuel quality to support advanced diesel technology. This mismatch between fuel standards and engine capabilities hinders the widespread adoption of diesel cars.
As China continues to grow, the need for energy-efficient and environmentally friendly transportation becomes more urgent. With rising fuel prices and increasing awareness of environmental issues, diesel vehicles may soon gain more acceptance. The key lies in improving fuel quality and updating policies to reflect modern technological advancements.
Ultimately, the future of diesel in China depends on balancing environmental protection, fuel efficiency, and public perception. With continued improvements in technology and policy, diesel vehicles could play a crucial role in shaping a cleaner, more sustainable transportation system.