While it is true that tires can expand when heated, the amount of expansion is typically not significant enough to cause any issues. Over-deflated tires can lead to reduced traction, increased braking distance, and potential tire failure, which can all contribute to accidents.
Here are some reasons why decreasing tire pressure during hot days is not advisable:
1. Reduced traction: Deflated tires have a smaller contact patch with the road, which reduces the amount of friction between the tire and the road surface. This can lead to reduced traction, making it more difficult to control the vehicle, especially during turns or sudden maneuvers.
2. Increased braking distance: Deflated tires have a longer stopping distance because they absorb more energy when rolling. This means that the vehicle will take longer to come to a stop when the brakes are applied, increasing the risk of an accident.
3. Potential tire failure: Over-deflated tires can put excessive strain on the tire sidewalls, increasing the risk of punctures, blowouts, and other tire failures. This is especially dangerous at high speeds or when carrying heavy loads.
4. Altered vehicle handling: Deflated tires can change the vehicle's handling characteristics, making it more difficult to steer and control. This can be particularly dangerous for inexperienced drivers or those who are unfamiliar with the vehicle.
5. Fuel efficiency: Deflated tires can also affect fuel efficiency, as they create more rolling resistance and force the engine to work harder.
If you are concerned about the effects of hot weather on your tires, here are some recommended steps to take instead of decreasing tire pressure:
1. Maintain proper tire pressure: Ensure that your tires are inflated to the recommended pressure indicated by the vehicle manufacturer. This information can usually be found on the vehicle's tire placard or in the owner's manual.
2. Avoid overloading the vehicle: Overloading the vehicle can put additional strain on the tires and increase the risk of tire failure.
3. Drive cautiously: Be aware of the road conditions and adjust your driving accordingly. Reduce speed and avoid sudden maneuvers, especially if you notice that your tires are feeling soft or spongy.
4. Inspect your tires regularly: Regularly inspect your tires for any signs of wear, damage, or bulges. If you notice any issues, have them addressed by a qualified tire professional as soon as possible.
