What grade of gasoline should the Haval M6 use?
4 Answers
The Haval M6 should use 92-grade gasoline. Do not use high-grade gasoline for a long time, as it can alter the ignition timing. Prolonged use of high-grade gasoline is not only bad for the car but can also shorten the engine's lifespan. The gasoline grade is the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the grade, the stronger the anti-knock performance. Relevant information is as follows: 1. Gasoline of different grades has different octane ratings, and gasoline with a higher octane rating has better stability. 2. Gasoline with poor stability can easily cause engine knocking. Knocking occurs during the engine's compression stroke. During the compression stroke, the piston moves upward to compress the combustible mixture, causing the temperature and pressure of the mixture to rise. 3. If the gasoline's stability is poor, the combustible mixture may ignite prematurely. The burning mixture will push the piston downward while it is still moving upward, which can affect the engine's power output.
I've been driving a Haval M6 for several years, and my friend asked the same question when he first bought the car. According to the official manual, it's recommended to use 92-octane gasoline, which is the most common grade under the Chinese standard. The octane rating matches the engine's compression ratio, making it both economical and worry-free. There's no need to use 95-octane or higher—it's not worth the extra cost, and the performance improvement is minimal, unless you frequently drive on highways or mountainous roads where the engine is under heavy load to prevent knocking. Using lower grades like 90-octane or below is risky, as it may cause knocking sounds, reduced power, or even long-term piston damage. When I first got the car, I compared 92 and 95-octane and found little difference in fuel consumption, so I stick with 92. Also, pay attention to fuel quality—choose reputable gas stations and avoid cheap, small ones. Off-brand fuel often contains impurities that can clog injectors and harm engine longevity. It doesn't hurt to check the fuel system during regular maintenance. In short, 92-octane is the golden choice—it saves money and protects your car.
Gasoline octane rating simply indicates the level of anti-knock performance. The number 92 represents 92 octane, which suits the engine design of family SUVs like the Haval M6. If you use a lower grade such as 90, the engine is prone to knocking—a phenomenon where the air-fuel mixture ignites prematurely, potentially causing cylinder wear and power loss. While using 95 octane is safer, it’s wasteful because the compression ratio isn’t high enough; the M6’s engine is optimized for 92 octane, which is perfectly adequate. I’ve tested different fuels in city and flat-road driving and noticed no real difference. Occasionally using higher octane can prevent jerking when climbing hills, but this car hardly needs it. It also depends on the fuel pump and injector compatibility—regularly using 92 octane ensures trouble-free operation for eight to ten years. Saving money for repairs or interior upgrades is more worthwhile. Always ensure the fuel cap is sealed properly during refueling, as high humidity can affect fuel quality—a small but important detail in maintaining good car care habits.
As an average car owner focused on cost-effective maintenance, I use 92-octane fuel for my Haval M6. The lower grade is cheaper—around 6 yuan per liter here, compared to 95-octane which costs 1 yuan more per liter, saving me dozens of yuan monthly on commuting. The engine is well-designed for it, delivering stable fuel consumption of 8-9L/100km for daily commutes, making higher-octane fuel unnecessary for marginal performance gains. While misfueling with 90-octane might cause knocking (though rare in urban driving), I never risk it—I always specify 92 at the pump. Note: long-term use of lower-grade fuel may cause carbon buildup; remember to periodically add fuel system cleaner. The golden rule? Follow the manual’s 92-octane recommendation—economical, practical, and eco-friendly.
