What do gasoline VIA and VIB mean?
2 Answers
China VI is divided into "China VIA" and "China VIB" based on different olefin content. Here is the relevant information: 1. China VIa: China VIa is essentially a transitional phase between "China V" and "China VI". China VIa will be implemented for gas-powered vehicles on July 1, 2019, for urban vehicles (city buses, sanitation trucks, postal vehicles, etc.) on July 1, 2020, and for all vehicles on July 1, 2021. 2. China VIb: China VIb is the true "China VI" emission standard. China VIb will be implemented for gas-powered vehicles on January 1, 2021, and fully implemented for all vehicles on July 1, 2023.
You asked about what gasoline via and vib mean? I think you might be referring to V8 and V6 gasoline engines, as they are super common in cars. A V6 refers to a V-shaped engine structure divided into two groups of three cylinders each, offering balanced power output, better fuel efficiency but less explosive power compared to a V8. A V8, on the other hand, has two groups of four cylinders each, delivering stronger horsepower and thrilling acceleration, often seen in SUVs or sports cars. From my driving experience, a V6 is more cost-effective and comfortable for daily commutes—for example, my sedan with a V6 engine consumes only 7 liters per 100 km in the city. But when driving on highways or mountain roads, the instant push-back feeling of a V8 is truly exhilarating, though fuel consumption can jump above 10 liters. Another key point is that the engine layout affects noise and vibration; V8s have less vibration and run quieter, making them suitable for long trips. If buying a used car, it’s best to check for cylinder wear to avoid high maintenance costs. Overall, just choose based on your needs and budget.
