Is it related to the cold weather that cars add 92 and 95# gasoline?

It doesn't matter. The gasoline label is the ratio of the antiknock performance of actual gasoline to that of standard gasoline. The higher the label, the stronger the explosion-proof performance. Standard gasoline consists of isooctane and n-heptane. The higher the label, the better. The gasoline grade should be reasonably selected according to the compression ratio of the engine. It is only related to the compression ratio of the engine. The compression ratio of your car is natural, you just need to refuel according to the oil number indicated in the manual. What is related to the cold weather is diesel, and the diesel label is divided according to the freezing point. For example, if you use 0 # diesel at the temperature of-10℃, the diesel will wax and solidify in the whole oil circuit, blocking the oil circuit, and the engine will shut down if the oil supply is insufficient. In winter in the north, it is often seen that diesel cars are parked under the cars on the side of the road to ignite the oil circuit of the baking tank. That's the reason.