For car owners, they deal with tires every day, but do you really know about tires? So, what do you know about cold tires?

The tyre pressure is clear enough, why is it a little flat?

In this case, do you want to keep adding gas? In fact, it is not used, because nowadays the tires are all vacuum tyres, and the tire pressure is generally between 2.2 and 2.6bai. If you are sure that the tire pressure is adequate, it is normal to look a bit flat. Just keep the tire pressure normal.

The inside on the top of the tire is marked on the outside, is it installed in reverse?

The Inside sign is Inside, and if it's outside, you can make sure the tire is in reverse. When the tire is retrofitted, it will accelerate the wear and tear of the tire and affect the comfort of the vehicle.

What does yellow spot on tire mean?

The yellow spot on the tire is actually the light spot mark, which is the lightest spot on the tire. For wheeled vehicles is composed of tires, wheel hub, and valve, the valve is the place where most tires, and with the valve corresponds to the yellow dot is the most gentle, play a complementary role between two points, can have the effect of tire balance.