Ever wonder when to replace your worn car tires? The
performance of your car tires is critical to the safety, performance and
efficiency of your vehicle; the N.H.T.S.A. estimates that about 400 fatalities
annually may have been attributed to tire failures. Most tires are designed to
provide similar performance throughout their lives. However, at some point they
start to lose performance in terms of their traction and braking ability. Here
are a few tips that should help you decide if it is time to start shopping for
a new set of tires and avoid spending more than you need to.
1. Look at the tread pattern: All tires sold in the United
States and other countries have what are called "tread wear bars".
These are small bridges that form between your treads. Look at the tread
pattern and you'll see the beginnings of these bars start to form between the
treads, or running across the tires. As the tires wear, these bars will become
flush (level or even) with the tire's tread. At this point, it's time to
replace the tires.
2. Check the tread by using the "penny test.":
Take a penny, and place it upside down with Lincoln facing you in the center of
the tread (at the thickest part of the tire).
If you can see the very top of Lincoln's head or the copper
above it, replace the tires immediately.
If Lincoln's hair on the top of his head is partially
visible, it is time to go shopping for tires.
If you cannot see the hair on the top of his head (if the
coin is inserted enough that the tire tread is at least as deep as Lincoln's
forehead), your tires do not need replacing yet.
3. Replace the tires at least every 6 years: If you're not
sure, the minimum replacement time that is recommended by the NHTSA is six
years regardless of use, with 10 years being the maximum service life for tires.
Check your owner's manual for specific recommendations related to your car. And
always err on the side of caution if you suspect your vehicle has tires that
are over six years of age.