
The original tire specification for the Outlander is 225/55R18. The first number, 225, represents the tire width of 225MM. The 55 indicates the tire's aspect ratio is 55%, meaning the section height is 55% of the width. The letter R stands for radial tire, and 18 denotes the rim diameter of 18 inches. The original Outlander has a fuel consumption of 7.5L per 100 kilometers. In addition to the model, tires also display the following common data: Tire cord material: Represented 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. 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 4.8km/h to 300km/h. Common speed ratings include: Q: 160km/h; H: 210km/h; V: 240km/h; W: 270km/h; Y: 300km/h. Rim specification: Shows the rim size compatible with the tire for practical use, such as "Standard Rim 5.00F".

I've been driving my Outlander for almost five years now, and the original tire size is usually 225/55R18. This size performs very steadily on my car, whether on highways or mountain roads, giving me peace of mind. The first time I changed tires, I didn't pay attention to the size and used a slightly smaller one, which made the car feel a bit wobbly when turning, and the fuel consumption increased a bit. Later, I switched back to the original size with Dunlop Grandtrek PT2 tires, and the noise reduced significantly, making long drives much less tiring. I recommend new car owners check the door label or manual and avoid randomly changing tire sizes to prevent affecting handling and safety. Regularly checking tire pressure and keeping it around 32 PSI ensures even tire wear, extends tire life, and saves a lot of money.

As someone who frequently tinkers with cars, I must say the original tire specifications for the Outlander are mostly 225/55R18. The 225 represents the width in millimeters, 55 is the aspect ratio, R stands for radial construction, and 18 inches is the rim diameter. This design provides moderate grip, making it suitable for both urban and suburban driving. I recommend sticking to the original size when replacing tires, and brands like Bridgestone or Michelin are fine, but avoid changing the width or height as it can increase fuel consumption and weaken handling. During maintenance, check the tread depth every quarter and avoid sidewall cracks to prevent accidents.

Safety first, the tire size of the Outlander, such as 225/55R18, must strictly match because the vehicle's suspension and stability control are designed based on this specification. I once used non-standard tires, and during a rainy day, the braking distance became longer, nearly causing an accident—a profound lesson. When replacing tires, ensure the correct size and maintain tire pressure within the standard range to avoid the risk of blowouts. Remember to replace tires every three to five years due to aging; don't skimp on small expenses.


