What type of gasoline should the Emgrand GS use?
4 Answers
Geely Emgrand GS has a gasoline grade requirement of 92 or above on the fuel cap. Generally, 92-octane gasoline is suitable for the Emgrand GS. However, for new cars, it is recommended to use 95-octane gasoline initially, which is beneficial for the car's break-in period and engine maintenance. Here is some additional information: 1. The higher the gasoline grade, the better the anti-knock performance. The choice of gasoline grade should be based on the engine's compression ratio, which is usually indicated in the vehicle's manual. 2. The car engine is designed to use a specific gasoline grade based on its compression ratio. A higher compression ratio improves power output and thermal efficiency, enhancing acceleration and top speed. However, due to limitations in cylinder material properties and gasoline combustion knock, the compression ratio of gasoline engines cannot be too high. Simply put, high-compression engines require high-grade gasoline. Higher-grade gasoline burns more slowly, reducing combustion knock, and is suitable for engines with higher compression ratios. Conversely, lower-grade gasoline burns faster, with higher combustion knock, and is suitable for engines with lower compression ratios. Therefore, always follow the fuel recommendations in the vehicle's manual.
I've been driving for over a decade. The official manual for the Geely Emgrand GS recommends using 92 octane unleaded gasoline. The octane rating of 92 is just right, as the engine was designed to match it with a proper compression ratio, resulting in smooth operation and good fuel economy. While 95 octane is also acceptable, it's not really necessary. It's more expensive, and for daily commuting, you won't notice any difference. Using the wrong fuel can cause problems, like carbon buildup and knocking if you use a lower grade for a long time, which can be troublesome and costly to fix. I advise new car owners to get into the habit of checking the manual before each refueling and not cutting corners by using whatever's available. Remember, sticking to the same octane rating can extend engine life and reduce unnecessary repair costs. My own car has followed this rule and run 60,000 kilometers without any issues.
My friend just picked up an Emgrand GS and excitedly researched it for a while, finding that the manufacturer clearly states that 92 octane unleaded gasoline is optimal. While 95 octane gasoline can be used, its cost-performance ratio isn't high—it costs a few cents more per liter but offers negligible power improvement. You might only notice a slight difference if you frequently drive on mountain roads or overtake on highways. Be careful not to mix different octane ratings or mistakenly add diesel when refueling, as this could lead to minor issues like engine shaking and increased fuel consumption, or even severe damage to the fuel injection system in worse cases. I've personally tried using 92 octane, and it runs very stably with smooth cold starts. The money saved is enough for a maintenance service. I recommend that beginners download an app to record fuel refills and monitor performance changes.
The engine design of the Emgrand GS is based on 92-octane gasoline, with a compression ratio optimally matched to this grade. While 95-octane gasoline has a higher octane rating and better anti-knock properties, it is not essential, and the engine won't significantly benefit from it. The key is to avoid using lower-grade fuel, which may cause knocking and damage the cylinders. I've been using 92-octane for daily commuting for over three years, and the engine runs quietly without any issues. Avoid switching grades unnecessarily to maintain system stability.
