You absolutely MUST check the sticker on your driver's side doorjamb. This sticker will show the recommended tire pressure for your specific vehicle configuration. It will likely list different pressures for front and rear tires, and sometimes even a higher pressure for higher-speed driving.
Ignoring the sticker and using the wrong tire pressure is dangerous and can lead to:
* Reduced fuel economy: Underinflation increases rolling resistance.
* Uneven tire wear: This shortens tire lifespan and can lead to dangerous handling.
* Blown tire: Overinflation makes tires more prone to punctures and blowouts.
* Poor handling and braking: Improper inflation significantly affects your vehicle's control.
Do not rely on a generalized answer found online. Find that sticker and use the pressure it recommends. You should also check your tire pressure regularly, ideally once a month or before long trips.
