What is the difference between tire pressure of 2.4 and 2.5?
2 Answers
Tire pressure of 2.4 and 2.5 does not make much difference. The normal tire pressure for cars is between 2.3 and 2.5 bar. Generally, tire pressure values within this range are safe. However, because tires come into contact with the ground, they experience some wear. Due to varying degrees of tire wear, the tire pressure for each tire may differ. Since tires are made of rubber, temperature affects them to some extent. When external temperatures rise, tires undergo thermal expansion and contraction. If the tire pressure is too high, it may lead to a tire blowout. Therefore, in summer, it is advisable to slightly reduce the tire pressure, for example, adjusting it to between 2.3 and 2.4 bar. As temperatures continue to rise, the tire pressure will return to normal values.
The difference between 2.4 and 2.5 bar in tire pressure is only 0.1 bar, which converts to approximately 3.5 and 3.6 psi respectively—a very minor variation. In terms of driving experience, tires at 2.5 bar feel slightly firmer, offering better support during cornering, but may result in a bumpier ride over speed bumps or rough roads. On the other hand, 2.4 bar provides a softer and more comfortable ride, though with slightly reduced handling at high speeds. Regarding fuel efficiency, 2.5 bar might save around 0.5% due to lower rolling resistance, potentially saving a small amount on fuel costs over time, but the actual difference is negligible. Both pressures are close to the standard values in terms of tire wear and won’t significantly shorten tire lifespan. My recommendation is to adjust according to the recommended value on the door frame—don’t overthink this minor variation. Regular tire pressure checks are far more crucial.
