Can China VI Vehicles Use 92 Octane Gasoline?
2 Answers
China VI emission standard vehicles can use 92 octane gasoline. The China VI Motor Vehicle Pollutant Emission Standard refers to the standard formulated to implement the "Environmental Protection Law of the People's Republic of China" and the "Air Pollution Prevention and Control Law of the People's Republic of China", aiming to prevent environmental pollution caused by exhaust emissions from compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. Additional information: 1. The China VI Motor Vehicle Pollutant Emission Standard is an upgraded version of the current China V emission standard, imposing stricter limits on CO (carbon monoxide), THC (total hydrocarbons), NMHC (non-methane hydrocarbons), and NOX (nitrogen oxides); 2. Compared to the China V standard, the China VI standard imposes more stringent limits on PM (particulate matter mass) emissions and introduces new regulations on PN (particulate matter number) emissions.
The issue of using 92 octane gasoline in China VI vehicles seems to be a common dilemma. My family's car is China VI compliant and has been running for over two years. The manual clearly states that 92 octane or higher is acceptable, but recommends 95 octane as optimal. When I first got the car, I experimented with 92 octane and noticed slight engine shudder during startup, especially in hot summer weather. The 4S dealership explained this occurs due to higher compression ratios where lower octane fuel has slightly poorer anti-knock properties. Long-term use of 92 octane may lead to increased carbon deposits and marginally higher fuel consumption - the savings on gasoline costs wouldn't cover the price of carbon remover additives. The China VI emission system is quite sensitive and might occasionally trigger the yellow warning light with lower-grade fuel, though this isn't a serious concern. While using 92 octane temporarily during budget constraints is acceptable for emergency situations, for long-term vehicle maintenance it's advisable to follow the manual's recommendation for higher octane fuel.
