Should the BYD S7 use 92 or 95 gasoline?
3 Answers
BYD S7 uses 92 gasoline. Here is some information about gasoline: Anti-knock property: The evaluation index of gasoline anti-knock property is the octane number, which is the gasoline grade. It is the ratio of the actual gasoline anti-knock property to that of standard gasoline. Standard gasoline is composed of isooctane and n-heptane. Isooctane has good anti-knock properties, and its octane number is defined as 100; n-heptane has poor anti-knock properties and is prone to knocking in gasoline engines, so its octane number is defined as 0. Principle: The main basis for selecting gasoline grade is the engine's compression ratio. Parameters such as compression ratio and ignition advance angle have already been set in the engine computer. As long as the owner strictly follows the requirements in the user manual to choose gasoline, there will be absolutely no problem.
I've been using my BYD S7 for almost four years now. The manual clearly recommends 92-octane gasoline, so I've always used it, and the engine runs smoothly without any issues. For daily commuting, the fuel consumption stays around 8 liters per 100 km, which is quite economical. Once during a long trip, I tried 95-octane and felt a bit more power during acceleration and slightly reduced noise, but the price difference of about 1 yuan per liter makes it uneconomical in the long run. I highly recommend carefully reading the user manual and not randomly using higher octane fuel, as it can lead to knocking or carbon buildup, and in severe cases, engine damage. For maintenance, regular oil changes and cleaning the fuel injectors can also extend the car's lifespan. Overall, 92-octane fully meets the manufacturer's requirements—it's cost-effective and reliable.
The engine design of the BYD S7 generally uses 92-octane gasoline, and lower octane ratings are not a big issue. Higher grades like 95-octane offer better anti-knock properties, making them suitable for frequent high-speed driving or heavy loads, reducing ignition issues. The owner's manual is usually the authoritative guide, emphasizing self-inspection to avoid risks. I've driven this car myself, and 92-octane is sufficient for city driving, though occasionally switching to 95-octane can make the output feel smoother. Don’t blindly believe in higher octane ratings—using the wrong fuel can actually increase carbon buildup risks. Pay more attention to fuel quality and oil change intervals to keep the engine more durable. For cost-effectiveness, 92-octane is the preferred choice, suitable for everyday driving habits.
