What is the suitable tire pressure for Changan Oshan X7?
2 Answers
The normal tire pressure range for Changan Oshan X7 is 2.4-2.5bar. 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 complies with the international GBT2978-2008 standard. The tire pressure monitoring for Changan Oshan X7 can be viewed on the dashboard. The vehicle is equipped with an automatic tire pressure monitoring system that alerts without manual operation. This tire pressure monitoring system uses ABS wheel speed sensors to compare the rotational speed differences between tires to determine if there is abnormal tire pressure. If an abnormality is detected, it immediately alerts. The module is integrated into the ABS pump. Generally, a tire pressure exceeding 2.8bar is considered too high, and a tire pressure below 2.0bar is considered too low. Hazards of overinflated tires: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and deviation, reducing driving comfort; accelerates wear on the central tread of the tire, shortening tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; overextends the tire cords, reducing tire elasticity and increasing the load on the vehicle during driving. Hazards of underinflated tires: Increased friction coefficient with the road surface, leading to higher fuel consumption; causes heavy steering and deviation, posing safety risks; increases movement in various parts of the tire, leading to excessive rolling and abnormal heat generation; reduces the functionality of cords and rubber, causing delamination or cord breakage and excessive friction with the rim, damaging the bead area and causing abnormal wear; multiplies friction between the tire and the ground, sharply raising tire temperature, softening the tire, and drastically reducing strength. High-speed driving may lead to tire blowouts. If the tire pressure monitoring indicator light comes on (a yellow symbol with an irregular circle, no stamp on top, four small spikes at the bottom, and an exclamation mark inside), there are generally three possible reasons: Abnormal tire pressure. Usually, it alerts when the pressure is below 1.8bar or above 3.0bar. In this case, tire inspection and pressure adjustment are needed. Tire pressure monitoring not reset. After inflating the tires, if the tire pressure is not reset in time, the system still records the previous data, causing the indicator light to come on. Simply reset the tire pressure to resolve this. Damaged tire pressure sensor. The tire pressure sensor, which monitors tire pressure, is directly installed inside the tire and connected to the tire inflation valve. If the sensor is damaged during driving, it can also trigger the tire pressure warning light. For sensor damage, the only solution is to replace it with a new one.
The recommended standard tire pressure for the Changan Oshan X7 is generally between 230-250 kPa when the tires are cold, which is approximately 33-36 PSI. Having driven this car, I found that maintaining tire pressure within this range is optimal because if it's too high, the center of the tire wears out faster and the ride feels stiffer; if it's too low, it leads to increased fuel consumption, reduced braking stability, and even a higher risk of tire blowouts. I usually check the tire pressure once a month using a simple pressure gauge in the morning when the tires are cold for more accurate readings. Don't forget the impact of seasonal changes—tire pressure naturally drops by about 0.2-0.3 bar in cold winter weather, so timely inflation is necessary. For safety, always refer to the official values on the door label or the owner's manual, and avoid adjusting based on guesswork.
