Rehvirõhk

Rehvirõhk refers to the air pressure inside a pneumatic tire. Maintaining the correct rehvirõhk is crucial for vehicle safety, fuel efficiency, and tire longevity. Improper rehvirõhk can lead to a variety of issues, including increased tire wear, reduced handling, and a higher risk of blowouts.

The recommended rehvirõhk for a vehicle is typically found in the owner's manual or on a sticker located on the driver's side doorjamb. This recommended pressure is usually specified in pounds per square inch (PSI) or kilopascals (kPa). It is important to check rehvirõhk regularly, as tires naturally lose air over time.

Underinflated tires can cause the tire's sidewalls to flex excessively, generating heat and potentially leading to tire failure. This also increases rolling resistance, which in turn reduces fuel economy. Overinflated tires can result in a harsher ride, reduced traction, and uneven wear patterns, with the center of the tread wearing out faster than the edges.

Factors such as temperature can also affect rehvirõhk. As temperatures rise, the air inside the tire expands, increasing the pressure. Conversely, colder temperatures cause the air to contract, lowering the pressure. Therefore, it is advisable to check rehvirõhk when the tires are cold, meaning the vehicle has not been driven for at least three hours. Consistent monitoring and adjustment of rehvirõhk are essential for optimal tire performance and overall vehicle safety.