What should be considered when replacing car tires?
2 Answers
When replacing car tires, it is important to choose the appropriate tires. The specifications of the tires must match the previous ones and be identical to the other tire on the same axle, including speed rating, load index, tread pattern, brand, and size, to ensure safe driving. New tires should be installed on the rear axle of the vehicle. If more worn tires are placed on the rear axle, it can reduce the rear wheels' water drainage capability, increasing the risk of driving in rainy conditions. Therefore, if only two new tires are being installed, they should be placed on the rear wheels. Car tires are one of the essential components of a vehicle, directly in contact with the road surface. Together with the car suspension, they help absorb shocks during driving, ensuring good ride comfort and smooth operation. They also maintain strong adhesion between the wheels and the road, improving traction, braking, and off-road capability while bearing the weight of the vehicle.
I've had quite some experience changing car tires. First, find a flat and safe spot to park, engage the handbrake, and set up the warning triangle. Then, use the jack to precisely support the designated points on the vehicle frame—don't lift at the wrong spot to avoid damaging the chassis. When loosening and tightening the lug nuts, follow a crisscross pattern—never go in a circular order to prevent wheel deformation. A manual wrench is sufficient; no excessive torque is needed. The new tire must perfectly match the old one in size and type, including speed rating and load index, or it could compromise handling safety. After installation, immediately check the tire pressure and adjust it to the recommended value. It's best to take a short test drive before hitting the highway to ensure no unusual noises. Regularly monitor tire wear and perform periodic rotations to prevent uneven tread wear.
