How often do you need to check the air pressure in your car tires?

The recommended frequency for checking tire pressure can vary depending on the vehicle, tire type, and driving conditions. Nevertheless, it's generally recommended to check tire pressure at least once a month and before long trips or when carrying heavy loads.

Here's a general guideline:

1. Normal Conditions: If you drive under regular circumstances and in moderate temperatures, you can check your tire pressure once a month.

2. Extreme Weather Conditions: In hot or cold weather conditions, tire pressure can fluctuate more significantly. It's recommended to check tire pressure more frequently during these times, perhaps every two weeks or before a long drive.

3. Heavy Loads: If you often carry heavy loads or tow a trailer, check your tire pressure before and after each trip to ensure proper inflation and safety.

4. Long Trips: Before embarking on a long road trip, it's crucial to check tire pressure to ensure it's at the recommended level for the load you're carrying.

It's also important to note that the recommended tire pressure for a vehicle can usually be found in the owner's manual or on a sticker located on the driver's side door jamb. Always refer to the manufacturer's recommendations for your specific vehicle.