Car tire pressure: why even 0.2 bar can make a difference

Tire pressure is one of those aspects that many drivers overlook, but which directly affects safety, fuel economy, driving comfort, and tire life.

In fact, a difference of just 0.2 bar is enough to significantly alter the car’s handling on the road.

Anyone who races on the track knows this well: tire pressure is constantly monitored because it affects grip, stability, and performance. But this principle also applies to everyday driving.

In this episode of CambioRuote Driving Stories, the endurance driver Alvise Rodella (LMP3 – ELMS) explains to us why pressure is a fundamental element to monitor.

Why tire pressure is important?

Having the right tire pressure guarantees that the tire's contact patch is in optimal contact with the ground.

When this balance changes, also change:

• adeherence;
• braking;steering precision;
• tread wear;
• fuel efficiency.

Incorrect tire pressure can affect the vehicle's performance even without any immediately obvious signs.

Too high pressure: what happens?

When a tire is è inflated over the recommended value:

• the contact area with the asphalt is reduced;
• reduces traction;
• increases wear in the center of the tread;
• the ride may become stiffer and less predictable.

In practice, the car loses some of its ability to handle the road.

Too low pressure: the risks

If the pressure is lower than it should be, it can cause:

• more overheating;
• more fuel consumption;
• uneven wear on the tires’ shoulders;
• deterioration of cornering response.

In the most extreme cases, a tire that is too underinflated can seriously compromise safety.

How often should you check your tire pressure?

The advice is simple: at least once a month, and always before:

• long trips;
• leaving for holidays;
• particularly heavy loads;
• seasonal changes.

The check should be performed on cold tires to ensure an accurate measurement.

Where to find the right pressure?

The manufacturer’s recommended values are usually indicated:

• on the driver’s side door pillar;
• in the user and maintenance manual;
• on the fuel cap (on some car models).

Attention: values may vary depending on the vehicle's load.
If you have any doubts, contact our specialized technicians on Whatsapp.

A small check, a big difference

As Alvise Rodella said in the video, the most important thing about tires usually doesn’t show.

Checking the pressure requires few minutes, but can make a big difference in terms of safety, performance and tire life.

On CambioRuote, you can find tires and alloy wheels for your car, in addition to technical advices thought to drive better everyday.