
The normal tire pressure range for the GS4 car is 2.3~2.7bar. Due to seasonal factors, the tire pressure can be appropriately increased by 0.2bar in winter and decreased by 0.1bar in summer. This data is based on the international GBT2978-2008 standard requirements. Generally speaking, a tire pressure exceeding 2.8bar is considered too high, and a tire pressure below 2.0bar is considered too low. Tire pressure monitoring is mainly divided into two types: indirect tire pressure monitoring and direct tire pressure monitoring. Direct tire pressure monitoring: Uses pressure sensors installed in each tire to directly measure the tire pressure. The pressure information is sent from inside the tire to a central receiver module via a wireless transmitter, and then the tire pressure data for each tire is displayed. When the tire pressure is too low or there is a leak, the system will automatically alert. Indirect tire pressure monitoring: When the pressure of a tire decreases, the vehicle's weight causes the rolling radius of that wheel to become smaller, resulting in its rotation speed being faster than the other wheels. By comparing the differences in rotation speeds between tires, the system monitors the tire pressure. Indirect tire pressure alert systems actually on calculating the rolling radius of the tire to monitor the pressure. Hazards of overinflated tires: Reduced friction and adhesion of the tire, affecting braking performance; causes steering wheel vibration and deviation, reducing driving comfort; accelerates wear on the central tread of the tire, reducing tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; causes excessive stretching deformation of the tire cords, reducing tire elasticity, and increasing the load on the vehicle while driving. Hazards of underinflated tires: Increases the friction coefficient with the road surface, leading to higher fuel consumption; causes the steering wheel to feel heavy and prone to deviation, among other factors detrimental to driving safety; increases the movement of various parts of the tire, causing abnormal heating due to excessive rolling; reduces the functionality of the cords and rubber, leading to delamination or cord breakage and excessive friction with the rim, causing damage to the bead area and abnormal wear; multiplies the friction between the tire and the ground, causing a sharp rise in tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may lead to a tire blowout. If the tire pressure monitoring indicator light is on, there are generally three reasons: Abnormal tire pressure: Generally, it will alert when the pressure is below 1.8bar or above 3.0bar. At this time, tire inspection and pressure adjustment are required. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset in time, the tire pressure monitoring system will still record the previous data, causing the tire pressure monitoring indicator light to turn on. At this point, simply reset the tire pressure. Damaged tire pressure sensor: The tire pressure sensor is used to monitor tire pressure and is directly installed inside the tire, connected to the tire inflation port. If the tire pressure sensor is damaged during driving, it will also cause the tire pressure fault light to turn on. For sensor damage issues, only a complete replacement of the part is possible.

As a long-term owner of the GS4, I believe maintaining tire pressure between 2.2 and 2.4 bar, equivalent to approximately 32-35 psi, is optimal. This range ensures driving safety—excessive pressure leads to rapid wear at the tire center and increased risk of skidding, while insufficient pressure significantly raises rolling resistance, increases fuel consumption, and may even cause dangerous tire blowouts. Personally, I check the tire pressure once a month using a tire gauge when the car is cold, ensuring all four tires maintain consistent pressure. During daily driving, tire pressure fluctuates with temperature; in hot weather, I slightly reduce it to the lower limit as pressure tends to rise, while in winter, I top it up to the upper limit. Developing this habit makes driving more stable, and a quick check before parking saves hassle and prevents unexpected delays. Remember to check the label on the door frame or the manual, as recommended values may vary slightly by model configuration but generally follow similar principles.

I've been repairing cars myself for many years and know that the recommended tire pressure for the GS4 is 2.2-2.4 bar. It's advisable to use a digital tire pressure gauge to measure when the car is cold in the morning—simply remove the valve cap to read the pressure and add air if it's low. Keeping a portable inflator handy or visiting a service station for a free check is very convenient. Adjusting tire pressure makes driving smoother, reduces tire wear, extends tire life, and saves money. Temperature changes affect air pressure; in summer, I set it to the lower limit, and in winter, I adjust it to the upper limit, checking once during seasonal transitions to maintain optimal levels. Choose high-quality tools for durability. The operation takes only a few minutes but impacts driving comfort and efficiency—don't overlook this small detail as it enhances the overall experience.

Tire pressure settings are crucial for the GS4's fuel economy, with the standard range of 2.2-2.4 bar optimizing fuel efficiency. Low tire pressure increases rolling resistance, and an average 1% higher fuel consumption adds up over time; maintaining the correct value reduces engine load and extends tire life. After trying the correct tire pressure, I saved enough on fuel in six months to buy a cup of coffee. Develop the habit of regular checks—measuring when the tires are cold ensures accuracy, combining safety and efficiency in one step.

Seasonal changes significantly impact the tire pressure settings for the GS4, with the recommended range typically between 2.2-2.4 bar. I adjust accordingly based on weather conditions. In summer, hot air expansion increases pressure, so I lower it to the minimum to prevent overinflation risks. In winter, due to cold contraction, I raise it to the maximum to avoid underinflation and increased wear. Measuring in the early morning when temperatures are lowest ensures accuracy. I check and adjust quarterly to adapt to changes, ensuring a more stable and comfortable drive. Areas with large temperature fluctuations require even more attention to these adjustments.

When driving the GS4 with a load, tire pressure needs adjustment. Unloaded, 2.2-2.4 bar is sufficient, but when fully loaded, such as for family trips with lots of luggage, it should be increased to 2.4-2.6 bar or refer to the manual. Increasing tire pressure supports the weight, avoids deformation risks, and enhances stability. Use a tire pressure gauge for simple checks. Adjusting to higher pressure before long trips is safer, more economical, and prevents damage. Consider both temperature changes and load to determine the optimal value.


