What is the tire model specification for the Buick Excelle?
2 Answers
The tire specification for the Buick Excelle is 205/55R16. The first number, 205, represents the tire width of 205 mm. The 55 indicates the aspect ratio of the tire's cross-section is 55%, meaning the height of the cross-section is 55% of the width. The 16 denotes the rim diameter of 16 inches, and the letter "R" in the middle stands for radial tire. The Buick Excelle uses Goodyear ASSURANCE Comfortred tires, featuring a dual-tone five-spoke wheel design, with a non-full-size spare tire. If you wish to replace the tire yourself, follow these steps: Retrieve the spare tire and jack. Position the jack under the vehicle frame near the tire to be replaced, ensuring the jack contacts the metal part of the frame. Raise the jack until it supports the car. The jack should be positioned directly under the vehicle, and ensure it is perpendicular to the ground. Remove the hubcap and loosen the nuts counterclockwise. Do not fully remove the nuts; just loosen them enough to eliminate resistance. Keeping the tire on the ground when first loosening the nuts ensures the nuts turn rather than the tire. Continue turning the nuts counterclockwise until they are loose. Repeat this step for all lug nuts and then remove them completely. Place the new tire onto the wheel hub, carefully aligning the tire rim with the wheel bolts. Install the lug nuts and hand-tighten them until all nuts are snug. The tire replacement is now complete. In addition to the model, tires also display the following common data: Tire cord material: Indicated by Chinese pinyin, such as M for cotton cord, R for rayon cord, N for nylon cord, G for steel cord, and ZG for steel radial cord tires. Speed rating: Indicates the maximum speed at which the tire can carry a specified load under defined conditions. Letters A to Z represent certified speed ratings from 4.8 km/h to 300 km/h. Common speed ratings include: Q: 160 km/h; H: 210 km/h; V: 240 km/h; W: 270 km/h; Y: 300 km/h. Rim specification: Indicates the rim size compatible with the tire for practical use, e.g., standard rim 5.00F.
My Excelle uses 205/55 R16 tires, which is a common configuration for most high-end models. During the last maintenance, the mechanic specifically reminded me to pay attention to the meaning of the numbers on the tire sidewall: 205 represents the tire width in millimeters, 55 is the aspect ratio, and R16 is the wheel diameter. Base models come with 195/65 R15 tires, which can be confirmed on the door frame nameplate. I recommend sticking to the original specifications—never opt for cheaper wrong models when changing tires, as it can cause alignment issues and uneven tire wear. Here’s a tip: in summer, it’s best to reduce the tire pressure to 2.3 bar for a much smoother ride over speed bumps.
