Decoding the Tire Sidewall: What Those Numbers Mean
Have you ever stared at your tire's sidewall, feeling lost among a sea of numbers and letters? It’s like trying to decipher an ancient language. But fear not! These markings are actually a cheat sheet for ensuring your vehicle is running smoothly.Key TakeawaysThe first letter indicates the tire type, such as P for passenger cars or LT for light trucks.The numbers 275 and 40 represent the width in millimeters and aspect ratio of your tires, respectively.A wheel diameter like 18 inches is crucial for fitting new wheels correctly on your car.Let's start with the basics. The letter at the beginning—P, T, or LT—is a clue to what kind of vehicle you're dealing with. P stands for passenger cars and is probably what most people see every day. If it’s an LT, that means we’re talking about something...