Should the Haval M6 use 92 or 95 octane gasoline?
2 Answers
The Haval M6 officially recommends using 92 octane gasoline or higher, so both 92 and 95 octane gasoline are acceptable. 92 octane gasoline has an octane rating of 92, while 95 octane gasoline has an octane rating of 95. The gasoline octane number represents its anti-knock performance, with higher numbers indicating better anti-knock capability. This is unrelated to the quality of the gasoline itself, nor does it mean that higher octane gasoline contains fewer impurities. Below are the differences between 92 and 95 octane gasoline: 1. Composition difference: 92 octane gasoline consists of 92% isooctane and 8% n-heptane, while 95 octane gasoline consists of 95% isooctane and 5% n-heptane. The main difference lies in the purity of isooctane. The higher the purity of isooctane, the stronger the anti-knock performance of the gasoline, and consequently, the higher the price. 2. Stability difference: 95 octane gasoline has excellent stability, but it is also more flammable. The octane value of 92 octane gasoline is 90%, while that of 95 octane gasoline is 95%. 3. Applicable vehicle difference: When choosing between 92 and 95 octane gasoline, it should be based on the vehicle's manual. Generally, lower-end vehicles can use 92 octane gasoline, while higher-end vehicles require 95 octane gasoline to meet the engine's demands.
I've been driving a Haval M6 for several years. I remember when I first bought the car, I checked the user manual, which clearly stated that 92-octane gasoline was recommended. Since then, I've always used 92-octane, and the car runs smoothly with decent fuel efficiency, averaging just a few cents per kilometer. Occasionally, I've tried switching to 95-octane gasoline, but I didn't notice any improvement in horsepower—just extra cost with no benefit. This car is designed as an economical SUV, and its engine compression ratio isn't as high as luxury cars, so using higher-octane fuel might lead to incomplete combustion. Unless the manual changes its recommendation, I suggest sticking with 92-octane to save money—no need for unnecessary upgrades. During routine maintenance, it's also good to confirm with the mechanic to avoid wasting money.
