What are the reasons for a decrease in tire pressure?

1 Answers
AliviaRose
07/29/25 11:26pm
Tire pressure can decrease for several main reasons: tire damage, such as punctures from nails or cracks in the tire tread, which can lead to air leakage; leakage at the tire valve stem, as some vehicles may experience loose or improperly secured valve stems, also causing air loss. Hazards of low tire pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; factors that negatively affect driving safety, such as a tendency to veer off course; increased movement of various parts of the tire, causing abnormal heating due to excessive rolling; reduced functionality of the cord and rubber, leading to delamination or cord breakage, as well as excessive friction with the rim, resulting in damage to the bead area and abnormal wear. Friction between the tire and the ground multiplies, causing a rapid rise in tire temperature, softening the tire, and drastically reducing its strength. High-speed driving under these conditions may lead to tire blowouts; increased deformation of the tire body, making the tire sidewalls prone to cracking, along with flexing movements that cause excessive heat, accelerating rubber aging, fatigue in the cord layers, and cord breakage. It also increases the tire's contact area with the ground, accelerating wear on the tire shoulders.
Was this review help?
5
5
Share
More Forum Discussions

What are the English letters on the front and back of tires?

Tires have two English words on each side: 'outside' for the outer side and 'inside' for the inner side. Here is the relevant information: Introduction: The left and right sides of a tire have different English words. 'Outside' indicates that this side of the tire should face the outer side of the vehicle, meaning the side visible when standing next to the vehicle. The other side has the word 'inside,' indicating the inner side, which should be installed facing the vehicle's interior, meaning the side not visible when standing next to the vehicle. Consequences of installing tires incorrectly: Installing tires incorrectly can result in reduced grip, uneven resistance on both sides, diminished braking effectiveness, and may lead to serious issues such as vehicle drifting and unstable steering. Tires are circular elastic rubber products mounted on various vehicles or machinery for rolling on the ground. They are often used under complex and demanding conditions, enduring various deformations, loads, forces, and extreme temperatures during operation. Therefore, they must possess high load-bearing, traction, and cushioning performance.
1
1
Share

What is the Auto Parts to Whole Vehicle Price Ratio?

Auto Parts to Whole Vehicle Price Ratio refers to the ratio between the price of parts and the sales price of the entire vehicle. The related introduction is as follows: Specific meaning of the ratio: The Auto Parts to Whole Vehicle Price Ratio specifically refers to the ratio of the total price of all installed parts to the sales price of the entire vehicle, multiplied by one hundred, resulting in a percentage coefficient. Calculation method of the ratio: Calculating the complete ratio is quite difficult as manufacturers do not disclose the prices of all components. Therefore, simplified versions such as "50-item vulnerable parts ratio" and "100-item vulnerable parts ratio" have emerged as reference methods.
2
4
Share

What is the interval for minor and major maintenance?

Minor maintenance should be performed every six months or 5,000 kilometers, while major maintenance is required every two years. Here are the details: Minor Maintenance: Minor maintenance typically refers to the routine service items performed at the manufacturer-recommended time or mileage to ensure vehicle performance. It mainly includes changing the engine oil and oil filter. The interval for minor maintenance depends on the effective duration or mileage of the oil and oil filter used. The lifespan varies for different brands and grades of mineral oil, semi-synthetic oil, and fully synthetic oil, so it's best to follow the manufacturer's recommendations. Oil filters are generally categorized into standard and long-life types. Standard oil filters are replaced along with the oil, while long-life oil filters have a longer service life. Major Maintenance: Major maintenance is required after the vehicle has traveled a certain distance (e.g., 30,000 kilometers or more). It involves comprehensive servicing, including all vehicle fluids such as brake fluid, power steering fluid, and transmission fluid. Additionally, safety components like coolant, timing belts, tires (four-wheel alignment), and brake pads should also be inspected and maintained.
5
4
Share

How many days late is considered overdue for vehicle inspection?

Vehicle inspection is considered overdue if it is late by even 1 day. Driving a vehicle with an overdue inspection will result in penalties. If a vehicle fails to undergo the mandatory safety technical inspection within the specified period, the public security traffic management department will issue a warning or impose a fine. The annual inspection can only be conducted after the fine is paid. Definition of Annual Inspection: Vehicle annual inspection refers to a mandatory test for every car that has obtained an official license plate and registration certificate. It is equivalent to an annual physical examination for the vehicle according to the "Technical Conditions for Motor Vehicle Operation Safety," aimed at promptly eliminating potential safety hazards and encouraging better vehicle maintenance. Inspection Cycle: For passenger transport vehicles, inspections are required once a year within the first 5 years; every 6 months after 5 years; and every 6 months after 10 years. For small and micro non-commercial passenger vehicles, inspections are required once every 2 years within the first 6 years; once a year after 6 years; and every 6 months after 15 years.
13
0
Share

How often should a family car be inspected after six years?

Micro and small non-commercial passenger vehicles over 6 years old must undergo an annual inspection. Non-commercial mini and small passenger vehicles with 7 to 9 seats enjoy a 6-year exemption policy, meaning they are exempt from on-site inspections within the first 6 years but must collect an annual inspection sticker every 2 years. Inspection reminders: Within the three-month period that includes the initial registration month of the vehicle and the two preceding months, all traffic violations must be resolved. Then, bring the vehicle registration certificate, compulsory traffic insurance policy, and ID card to the local inspection station for the vehicle inspection. Inspection details: For vehicles that have reached 6 years, an annual inspection is required. This involves paying a fee at the inspection station, followed by an exterior check, emissions test, and safety technical inspection. After passing all tests, collect the results, have them signed and uploaded by the staff, and upon approval, receive the annual inspection pass sticker.
16
5
Share

Why Does the Engine Sound Louder After Car Maintenance?

After routine maintenance, the engine sound may become louder due to the use of different engine oil specifications, which is the most common reason. Different engine oils mainly refer to variations in oil grades and brands. When the replaced oil has a different grade and viscosity, it naturally creates certain differences. The resistance generated by the old and new oils will also differ, so it's understandable that the noise level changes after an oil change. Types of Engine Oil: Engine oils are classified into mineral oil, semi-synthetic oil, and full-synthetic oil. Modern engine oils consist of base oils made from hydrocarbons, poly-alpha-olefins (PAO), and poly-internal-olefins (PIO), all of which are organic compounds composed solely of carbon and hydrogen. Some premium engine oils may contain up to 20% esters. Functions of Engine Oil: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing bush. To prevent excessive wear on these parts, an oil film must be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of the relatively sliding parts, thereby reducing wear.
10
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.