What should be noted when replacing new tires?

[MacAaron]

When replacing new tires, pay attention to the following: 1. Distinguishing between new and old tires: There will be significant differences between new and old tires when placed together, with noticeable distinctions in tread depth and rubber color. The small particles on new tires and the tread hairs on the sidewalls indicate that the tire is brand new. 2. Tire orientation: The so-called tire orientation refers to which side should face outward. When installing the tire, ensure the side with numbers faces the front of the wheel hub. 3. Choosing the right tire: The specifications of the tire should match the other tire on the same axle. 4. Replace the valve stem as well: After replacing the tire, the aging cycles of the new tire and the valve stem differ, which may lead to issues with the valve stem. Therefore, replace the valve stem along with the tire. 5. It is recommended to perform a four-wheel alignment, specifically front wheel alignment, when installing new tires. This includes four items: caster angle, kingpin inclination angle, camber angle, and toe angle.

[Rosalie]

As a seasoned driver with twenty years of experience, I always make sure to confirm that the size and specifications of new tires perfectly match the original ones before replacement. Using mismatched models can be extremely dangerous, leading to loss of control. Next, I carefully check the DOT production date code on the tires and advise against using tires older than two years to prevent rubber degradation and performance loss. During installation, the key steps are proper wheel balancing and alignment adjustment—otherwise, the steering wheel may shake violently at high speeds, compromising stability. Additionally, I adjust the tire pressure to the manufacturer-recommended value (e.g., around 32 PSI) and test-drive for about ten kilometers to ensure no abnormal noise or vibration. Safety always comes first, so it’s best to rely on a reputable shop for proper disposal and eco-friendly recycling of old tires to avoid environmental pollution.

[McBeau]

Having assisted in countless tire changes at the auto repair shop, I remember the most crucial steps are ensuring the wheel hubs are thoroughly cleaned and free from rust, and that new bolts are properly tightened to prevent loosening or detachment. Simultaneously, performing a four-wheel alignment to correct angles is essential; otherwise, new tires will wear unevenly quickly, shortening their lifespan and increasing future costs. Don't overlook whether the valve stems need replacing—aging can cause slow leaks, leading to unstable tire pressure and increasing the risk of a blowout, especially before long-distance drives. After installation, always test-drive the vehicle by accelerating to high speeds to check for any vibrations or unusual noises. These small details are often overlooked but are critically important—road safety is no trivial matter. I remind everyone that regular maintenance is key.

[AllieMarie]

From a road trip enthusiast's perspective, when getting new tires, first consider precise tire pressure matching the recommended value – too high or low can easily cause blowouts. I regularly use a tire pressure gauge for self-checks. Secondly, choose season-appropriate tire types: summer/all-season for warm months and winter/snow tires for cold seasons to significantly improve traction, especially enhancing safety in rain or snow. During installation, closely monitor the technician's work, particularly the wheel balancing process, to prevent abnormal steering wheel vibrations that affect driving comfort. Also pay attention to tread depth and wear indicators. After replacement, drive a few hundred kilometers to ensure stable performance before venturing into remote areas.