When it comes to tire replacement, one question that often arises is whether all four tires should be the same size. While it may be tempting to replace only the damaged or worn out tire, it’s important to consider the impact of different tire sizes on your vehicle’s performance and safety.
Here are some reasons why all four tires should be the same size:
Maintaining proper handling and stability: When tires have different sizes, they may have varying circumferences and revolutions per mile, which can affect the speedometer reading and the stability of the vehicle. This can cause uneven wear and tear on the tires, affect handling and cornering, and potentially lead to accidents.
Improving traction and safety: When all four tires are the same size, they have the same tread depth and pattern, which can improve traction and safety on the road, especially in wet or slippery conditions. Different tire sizes can also affect the anti-lock braking system (ABS) and the electronic stability control (ESC), making it harder to control the vehicle.
Preserving the drivetrain: In vehicles with all-wheel drive (AWD) or four-wheel drive (4WD), having different tire sizes can damage the drivetrain, which is designed to distribute power evenly to all four wheels. Uneven tire sizes can cause excessive wear and tear on the differentials, gears, and axles, leading to costly repairs.
Compliance with manufacturer recommendations: Vehicle manufacturers usually recommend specific tire sizes and types for their vehicles, which have been tested and certified for safety and performance. Using different tire sizes can void the manufacturer’s warranty and compromise the vehicle’s performance and safety.
In conclusion, it’s always best to replace all four tires at the same time and with the same size and type recommended by the manufacturer or tire professional. This will ensure that your vehicle is safe, stable, and performing at its best. It may cost more upfront, but it can save you money and headaches in the long run. Remember to also maintain proper tire inflation, alignment, and rotation to extend the life and performance of your tires.
Tireclopedia 
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