The load index on a tire is an assigned number that corresponds to the maximum weight that a tire can support when properly inflated. The load index is a numerical code created as a guide to understanding the maximum weight each tire can support when it’s properly inflated to the manufacturer’s recommended tire pressure. The load index is located on the tire’s sidewall and listed after the tire’s size. The load index is translated to weight, meaning that the higher a tire’s load index number is, the greater its load-carrying capacity. The load index is massively important when shopping for new tires, and it is critical to use tires with the right load index. The load index tells you how much weight your tire can carry, and overloading your tires is never a good idea. When you put too much weight on your tires, you can cause damage and wear them down prematurely. Even worse, you run the risk of experiencing a tire blowout. To determine if a set of tires will work, you must select tires that can support your car’s Gross Vehicle Weight Rating (GVWR), which can be found in the owner’s manual.