
SUV tire pressure is normal between 2.2 and 2.5 bar. The functions of tires are: 1. To serve as the medium for force transmission between the vehicle and the road surface, transmitting driving force, braking force, and steering force to achieve the vehicle's driving, braking, and steering operations; 2. To support the vehicle load, where the vehicle's load causes the tire to sink until the average pressure on the tire's contact area balances with the internal inflation pressure; 3. To reduce and absorb vibrations and impacts during driving, preventing early damage to vehicle components caused by severe vibrations; 4. To adapt to the vehicle's high-speed driving conditions, reduce driving noise, and ensure driving safety, comfort, handling stability, and fuel economy.

I've been driving SUVs for many years and found that the normal tire pressure is generally between 30 to 35 PSI, but the most crucial thing is to check the number specified in your car's manual or the label on the driver's side door. For example, my own SUV is set at 33 PSI. Last time when the pressure dropped to 28 PSI, I noticed the ride became a bit shaky, especially bumpy on rough roads, and the fuel consumption increased slightly. Different models vary; some off-road types might allow slightly lower pressure for better comfort, but it's best not to go below 30 PSI to prevent rapid tire wear. Improper pressure can also increase the risk of a blowout, especially on long trips. I recommend checking it at least once a month—gas stations often offer free air filling services, which is very convenient. Developing this habit can make your car run more smoothly, extend tire life, and save you a lot of hassle and money.

From a safety perspective, tire pressure is extremely important. Based on my experience, the normal range for SUVs should be between 30 to 35 PSI, but it's crucial to strictly follow the manufacturer's recommended values labeled on the vehicle. Insufficient pressure makes tires more prone to overheating and deformation, increasing the risk of blowouts and compromising handling safety; excessive pressure reduces grip, making the vehicle more likely to skid in rainy conditions. I usually maintain mine around 32 PSI and regularly check with a simple pressure gauge. Proper tire pressure makes the car more responsive and shortens emergency braking distances. Seasonal adjustments are also necessary—for example, tire pressure often drops in cold weather and requires topping up. Always check before highway driving to prevent accidents. Neglecting this detail can lead to serious consequences, so it's best to make it a habit for safety maintenance.

To save fuel, don't ignore tire pressure. My SUV's normal pressure is around 30 to 35 PSI, depending on the model - mine recommends 33 PSI. With proper pressure, rolling resistance decreases and tires rotate more smoothly, which can reduce fuel consumption by about 10%. I always check the pressure during maintenance to ensure it's at the ideal value - too low increases fuel consumption, while too high worsens handling. Using a digital pressure gauge to measure cold tires once a month gives accurate readings. Adjusting the pressure properly makes driving smoother and saves some fuel money - quite cost-effective.


