Yokohamas are designed to last a long time, but it is important to remind your customers to inspect their tires monthly to ensure proper performance. Once the tread is worn down to 2/32 of an inch, it’s time to get some new Yokohamas.
Yokohama recommends tire replacement in full sets of the same size, tread design, construction, load index and speed rating.
There are a few ways to easily tell when tires need to be replaced:
1) There are treadwear indicator bars (tire wear bars) that will show when the tire tread has reached the legal limit for road use. When the tread is flush with the treadwear indicator bars, it’s time to replace them.
2) You also can insert a penny into the tire tread—with Lincoln’s head upside down. If you can see all of Abe’s head, it means the tread is too worn.
When the vehicle manufacturer guidelines for tire replacement differ from those of Yokohama, the owner should follow the vehicle manufacturer’s recommendations for tire replacement.
If the vehicle placard specifies different sizes on front and rear axles, replacement tires should be an exact replacement, including both representative load index and speed ratings. When changing between P-metric, Euro-metric and LT-metric sizes occur, both inflation pressure and load-carrying capacity adjustments may be required, and if size has been changed from the vehicle's original size tire pressure recalculation may be necessary. Yokohama’s Consumer Affairs department is available to help with tire pressure recalculation at 800-722-9888.
If the decision is made to only apply two new tires, the new tires should be installed on the rear position.
When replacing a tire designated with a load index and speed rating, the new tire’s load index and speed rating should be EQUAL to or HIGHER than the tire load index and speed rating specified on the OE placard. This rule has been put in place to avoid issues that can come with installation of tires not capable of the vehicle requirements.