
In Phase IV, the average fuel consumption of passenger vehicles in China was 5.0 liters per 100 kilometers. Research Background: After a long period of development, China's commercial vehicle market has entered a period of rapid growth in the past decade, with the development of heavy-duty commercial vehicles being particularly remarkable. However, the high pollution and high fuel consumption caused by heavy-duty commercial vehicles have also been persistent concerns. To curb the high fuel consumption of heavy-duty commercial vehicles and promote the adoption and use of clean technologies in commercial vehicles, China has introduced a series of fuel consumption limit standards for commercial vehicles over the past decade. Phase IV Fuel Consumption: The Phase IV fuel consumption standard for commercial vehicles in China is a crucial step in promoting the development of the commercial vehicle industry. The selection of driving cycles is particularly important. It is recommended to further introduce slope testing in the bench testing of fuel consumption standards, which will improve the alignment between fuel consumption standards and actual driving conditions. Additionally, it will encourage the adoption of more advanced energy-saving auxiliary technologies in new vehicle models.

When it comes to Phase IV fuel consumption, it generally refers to the fuel consumption per 100 kilometers under the China IV emission standards. There's no one-size-fits-all answer—it depends on the vehicle model and usage. For example, compact cars like the Fit or Polo might consume around 8-10 liters in city driving, dropping to 6-7 liters on highways. SUVs such as the Haval H6 could reach 11-15 liters, as the addition of catalytic converters and oxygen sensors under China IV increased engine load during exhaust treatment. However, modern technological optimizations have actually made fuel consumption lower than under older standards. Why care about this? When choosing a car, don’t just look at phase parameters—real-world driving habits matter too. The secret to fuel efficiency lies in smooth acceleration and regular air filter changes, saving money while being eco-friendly.

What's the fuel consumption in Stage IV? As a veteran driver with ten years of experience, I think the fuel consumption during the China IV era was quite reasonable. My old Jetta used to consume around 9 liters in the city and a steady 7 liters on the highway, but it varies greatly between models—small-displacement engines like 1.5L typically consume 7-9 liters, while larger SUVs with big engines can easily exceed 12 liters. The China IV emission standards were strict, adding components like DPF (Diesel Particulate Filter), which might slightly increase fuel consumption, but technological advancements have balanced the difference. Before a car, I recommend checking the MIIT test data. In actual driving, maintaining proper tire pressure and avoiding sudden braking can reduce fuel consumption by up to 10%.

Stage IV fuel consumption refers to the fuel usage of vehicles meeting the National IV emission standards, averaging 9-12 liters per 100 kilometers. Having driven many cars, urban congestion leads to rapid fuel consumption increases. Economy models like the Corolla can go as low as 6.5 liters, while pickup trucks exceed 14 liters. Why the concern? Stricter emissions standards may slightly increase exhaust system resistance, but newer engines are more efficient. Actual measured fuel consumption is what truly matters—relying on word-of-mouth and test reports is more reliable when choosing a car.

Regarding the issue of fuel consumption in Stage IV emissions, I often help friends evaluate vehicle conditions. It must be said that fuel consumption under China IV emission standards varies by vehicle. For ordinary sedans like the Bora, it's approximately 7-10 liters, while SUVs such as the Changan CS75 can reach 10-13 liters. The reason: China IV standards enhanced exhaust purification by adding catalytic converters, which slightly increases engine load and results in marginally higher fuel consumption. However, technological advancements like direct fuel injection have compensated for these losses. A friendly reminder: maintaining the emission system well can save fuel, as blockages can increase consumption, making regular inspections crucial.

Discussing Phase IV fuel consumption? As an auto enthusiast, under China IV standards, fuel consumption typically ranged from 9-11 liters per 100km. Compact cars like the Sylphy could go as low as 7 liters, while SUVs might reach up to 13 liters. This is because emission upgrades required additional components, increasing engine load, but engineers balanced this with lightweight designs. Poor urban driving habits could cause fuel consumption to spike. Real-world test data shows that choosing low-drag vehicle bodies and high-efficiency filters can optimize fuel efficiency, avoiding wasted money.


