What octane gasoline should the Trumpchi GS8 use?
3 Answers
According to official recommendations, the Trumpchi GS8 should use 95-octane gasoline. When refueling, you should refer to the vehicle's user manual, which provides clear instructions. You can also find the recommended fuel standard on the inside of the fuel tank cap. Since the engine's compression ratio, ignition timing, and other parameters are preset in the engine's computer, owners should strictly follow the user manual's requirements when selecting gasoline. The differences between 92-octane and 95-octane gasoline mainly lie in their octane ratings, anti-knock properties, and prices. 92-octane gasoline consists of 92% isooctane and 8% n-heptane, while 95-octane gasoline consists of 95% isooctane and 5% n-heptane. Gasolines with different octane ratings have varying levels of anti-knock properties—higher octane ratings indicate better anti-knock performance. 95-octane gasoline is more expensive than 92-octane gasoline because it contains a higher proportion of isooctane. Each engine undergoes a comprehensive evaluation before leaving the factory, and based on its performance and other characteristics, the required anti-knock properties—and thus the appropriate gasoline octane rating—are determined. Fuel usage precautions: Use one type of gasoline consistently; mixing different types can harm the engine and fuel system. The choice of gasoline octane rating should be based on the engine's compression ratio—higher octane ratings are not necessarily better, and blindly using high-octane fuel is not advisable.
As a veteran driver who has been driving the GAC GS8 for several years, I find that using 92-octane gasoline is the most suitable choice. There's really no need for 95-octane fuel in daily urban driving. The GS8's engine is well-designed to be compatible with 92-octane, providing sufficient power output for city driving while saving money and hassle. I've tried 95-octane a few times and noticed slightly smoother acceleration on highways, but the higher cost doesn't justify the minor benefit. The key point is never to use gasoline with an octane rating lower than 92, as it may cause knocking and damage the engine pistons. I recommend choosing reputable gas stations to ensure fuel quality. Regularly checking spark plugs during maintenance can also prevent potential issues. 92-octane gasoline is cost-effective and causes no harm to the vehicle with long-term use.
As a new owner of the Trumpchi GS8, I checked the manual and found it recommends 92-octane or higher gasoline, so I've been using 92 all along. It's cheaper, costing just a few dozen bucks to fill up the tank, and the power is sufficient. A friend mentioned that 95-octane offers a slight performance boost at high RPMs, but it's unnecessary for daily commuting. Just be cautious not to refuel at small gas stations to avoid engine issues caused by poor fuel quality. Lower octane fuel may reduce performance and even cause smoking or stalling. Sticking with 92-octane for daily driving is not only economical but also reliable—the car runs smoothly and quietly. The GS8 is designed to run perfectly on 92-octane, so no need for higher grades. Saving money and hassle is what matters most.
