Which of the following statements is not true about proper tire care?
a. if you see a wear bar across the width of the tread while facing it, it's time to replace the tire.
b. properly-inflated tires are critical to vehicle control and good gas mileage.
c. tire tread depth can only be checked by a properly-trained tire expert.
d. under-inflated tires experience uneven friction and heat buildup, which can lead to blowouts.

C. examining the health of the tire isn’t a rocket science. Anyone with a little knowledge of the tires can examine the tire and tell if it needs replacement. For instance the fact that proper air pressure in the tire needs to be maintained, depending the weather to better utilize the car power and increase the life of the tire.

Correct answer choice is :

The three significant areas to keep an eye on is the step, sidewall, and air force of the tire. Having the right air pressure in your vehicle's tires lets your vehicle operate in the most effective way possible. When objects such as a screw or nail penetrate a tire, it creates a small hole in the tire.