Should the Haval H6 Turbocharged Engine Use 92 or 95 Octane Gasoline?
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Haval H6 turbocharged engine requires 92 octane or higher gasoline. 92 octane gasoline refers to gasoline with an octane rating of 92. Information about motor oil grades: Definition and Explanation: Motor oil grades consist of two parts: classification and viscosity specification. Oil grades typically indicate viscosity and quality. The viscosity of lubricating oil is often identified using SAE grade standards. Viscosity Indication: On the outer packaging of motor oil, you can see SAE and API, where SAE stands for the Society of Automotive Engineers, and API stands for the American Petroleum Institute. The number following SAE indicates the oil's viscosity value, while the number following API indicates the oil's quality grade. Classification Details: Motor oils are specifically categorized into 4 types for summer use, 6 types for winter use, and 16 types for all-season use. The summer oil grades are: 20, 30, 40, 50, with higher numbers indicating higher viscosity. The winter oil grades are: 0W, 5W, 10W, 15W, 20W, 25W, where a smaller number before the W indicates lower low-temperature viscosity and better low-temperature fluidity.
I drive a turbocharged Haval H6 and always use 95-octane gasoline, which makes the engine run smoother. Turbocharged engines require high-octane fuel to prevent knocking, that "knocking" sound. Although 92-octane gasoline is cheaper, it has a lower octane rating, which can lead to insufficient power in city traffic jams and may even increase fuel consumption. The manual clearly recommends 95-octane, so don’t skip reading it. I tried 92-octane once, and the car noticeably shook when the AC was on in summer, which scared me into switching back to 95-octane. Long-term use of 92-octane may also cause carbon buildup, leading to higher repair costs. 95-octane fuel is also more reliable on highways, with faster power response, and the overall cost is actually about the same.
My Haval H6 turbo has been running for two years. From an economic perspective, using 92-octane gasoline saves costs, but the risk is too high. The turbo engine is designed for 95-octane fuel, as the higher octane rating prevents knocking. If you insist on using 92-octane, the engine may experience performance degradation under high load, and even damage the turbo components. I checked the fuel cap label, which clearly recommends 95-octane, otherwise fuel consumption will increase. Occasionally using 92-octane in emergencies is fine, but long-term use is not worth the savings. During maintenance, the technician also reminded me that using 95-octane fuel can extend engine life, which is far more valuable than saving a bit on fuel costs.