The letters “XL” on a tire sidewall point out that it’s an Additional Load tire. This designation signifies the tire’s functionality to bear the next most load at the next inflation strain in comparison with an ordinary load (SL) tire of the identical dimension. For instance, a tire labeled 225/45R17 XL can help extra weight than a 225/45R17 SL tire when each are inflated to their respective most pressures.
This elevated load capability presents a number of benefits. It may be important for automobiles with heavier curb weights, resembling SUVs, vans, and a few sedans. Moreover, the improved load-bearing functionality can enhance car stability and dealing with, particularly when carrying heavy masses or towing trailers. Traditionally, the introduction of additional load tires addressed the rising demand for tires that might accommodate the growing weight and efficiency traits of contemporary automobiles.