Does Discount Tire Come to You? Mobile Installation

Yes, Discount Tire comes to your home or office through Mobile Installation at participating locations. A trained technician arrives in a service van, mounts and balances eligible tires on-site, then installs the wheel assemblies on your vehicle. Availability, pricing, vehicle eligibility, and included services depend on your ZIP code and appointment location. Key Facts at […]
What Does M+S Mean on a Tire? M+S vs 3PMSF

M+S on a tire means “Mud and Snow.” The marking identifies a tread pattern designed to clear mud and fresh snow more effectively than a conventional highway or summer pattern. M+S is not, by itself, proof that the tire passed an independent snow-traction test or will grip ice safely. Key Facts at a Glance What […]
What Does HT Stand for on a Tire? Highway-Terrain Explained

On a tire, HT or H/T usually stands for Highway-Terrain. H/T tires are designed primarily for paved roads, where they prioritize quiet operation, stable highway handling, wet-pavement grip, fuel efficiency, and long tread life over deep-mud or rock-trail traction. The designation describes the tire’s intended terrain, not its speed rating or exact load capacity. Key […]
What Does 99W Mean on a Tire? Load and Speed Explained

The marking 99W on a tire combines a load index and a speed rating. The number 99 means the tire can carry up to 775 kilograms (1,709 pounds) under its specified maximum conditions, while W indicates a tested maximum speed of 270 km/h (168 mph) when the tire carries the correct load and has proper […]
What Are Tire Dimensions? Decode Size and Fitment Safely

Tire dimensions are the alphanumeric measurements and ratings molded into a tire’s sidewall that define its width, sidewall height, construction, wheel diameter, load capacity, and speed capability. A code such as P215/65R15 95H identifies how the tire is built and which wheel and vehicle applications it can safely serve. Tire Dimensions at a Glance What […]
What Does 94H Mean on a Tire? Load and Speed Explained

The 94H marking on a tire is a service description that combines a load index and a speed rating. The number 94 means the tire is rated to carry 1,477 pounds (670 kilograms) per tire under specified conditions, while H indicates a maximum rated speed of 130 mph (210 km/h) in standardized testing. Key Facts […]
Does the Speed Rating Matter on Tires? Safety, Cost, and Fit

Yes, the speed rating matters on tires because it identifies the tire’s tested ability to carry a specified load at a sustained speed while controlling heat and deformation. The correct replacement must meet the vehicle manufacturer’s speed and load specifications, although a higher rating can change ride comfort, price, treadwear, and steering response. Key Facts […]
How to Tell What Tires You Have: Decode the Sidewall

To tell what tires you have, read the tire’s molded sidewall markings and confirm them against the vehicle’s driver-door placard or owner’s manual. The sidewall reveals the tire brand, model, size, construction, load index, speed rating, season or terrain category, and manufacturing date. The vehicle placard determines whether that size and capacity are correct for […]
How to Read Tire Dimensions: Decode Every Marking

To read tire dimensions, locate the tire size string on the sidewall or vehicle placard, then decode its service type, width, aspect ratio, construction, wheel diameter, load index, and speed rating in that order. For example, P215/65R15 95H describes a passenger tire that is 215 mm wide, has a 65% aspect ratio, fits a 15-inch […]
Where to Find Date on Tires: Read the DOT Code

The tire manufacturing date is on the sidewall, within the tire identification number that begins with “DOT.” On modern tires, the date is the final four digits: the first two identify the production week, and the last two identify the production year. The complete code may appear only on the inward-facing sidewall. Key Facts The […]