Final answer:
The correct statement regarding tires and hot weather is that you should inspect your tires every two hours or every 100 miles. Tire pressure increases with temperature, and proper inflation is vital for safe and efficient driving.
Step-by-step explanation:
The statement about tires and hot weather driving that is true is: inspect your tires every two hours or every 100 miles in hot weather. This is important because as the car is driven and the tires flex, their temperature increases, and therefore the pressure inside the tires also increases. It's essential to maintain proper air pressure for safety, fuel efficiency, and the longevity of the tires. Tire pressure should be measured when tires are cold, as recommended by manufacturers. If a tire is too hot to touch, it could be dangerously overinflated or damaged, and driving on it could lead to a tire failure.
Contrary to some beliefs, the air pressure of a tire does not decrease as the temperature of the tire increases; it actually increases due to the gas laws that relate pressure, temperature, and volume. Checking tire pressure regularly in hot weather is crucial for driving safety.