
Tire deflation requires the use of a valve core tool. Below are the specific details about tire deflation: 1. Purpose: The level of tire pressure plays a crucial role in a car's performance and power. If the tire pressure is too high, it increases the load on the car during driving, making it more prone to blowouts, increasing body vibrations and tire noise, and reducing comfort. In such cases, it is appropriate to deflate the tires slightly. 2. Precautions: If high tire pressure is detected while driving, do not deflate the tires immediately because tire pressure increases during high-speed driving. Wait until the tire temperature has cooled down before checking again.

I often do DIY tire maintenance myself, and the most commonly used tool for deflating tires is the tire deflation valve tool, which is a small wrench or clip specifically designed to loosen the valve core and let air out slowly. A good-quality one costs just a few bucks, and it's advisable to wear gloves during operation to keep your hands clean. There are many reasons for deflating tires, such as reducing high tire pressure in summer to prevent blowouts or preparing for better traction in winter off-roading. After deflating, remember to immediately check with a tire pressure gauge—don't rely on the vehicle's warning light, as it might be inaccurate. Deflating too quickly can deform the tire and damage the wheel, so I recommend doing it when the tires are cold, measuring the exact pressure before releasing air. Afterward, it's best to drive a short distance to reset the tire pressure monitoring system to avoid persistent warning lights. Always keep a portable air pump handy in case you release too much air, so you can top it up anytime to ensure safe driving and better fuel efficiency.

In daily vehicle maintenance, a dedicated tire deflation valve is the preferred tool for releasing air. This small tool ensures the valve core releases air evenly, preventing uncontrolled pressure loss. A manual method involves gently pressing the small pin of the valve core with a key, but this is not recommended due to poor precision and potential damage to components. Before operating, measure the current tire pressure against the reference value and release air slowly to maintain control. Releasing air too quickly can affect driving stability and may damage seals. Environmental factors should also be considered; tire pressure readings are higher when the tires are hot, so it's best to perform this task in cooler conditions. After completion, recheck the pressure to ensure balance. Reasons for deflation, such as fuel optimization or adapting to different road conditions, should be weighed carefully. Over-deflation can increase fuel consumption or accelerate wear, so it's important to balance benefits and risks.

In the early days, we relied on a small trick using an old key to depress the valve core for deflation, which was convenient but hard to control, often leading to excessive air release. Nowadays, standard deflation valve tools are used, making the process much safer and easier to handle. Before deflating, measure the tire pressure and refer to the label information. Release air gradually without rushing, as doing it too quickly can cause uneven tire wear, deformation, and affect lifespan. Why deflate? To adjust road feel or temporarily handle excessively high pressure. Avoid deflating at noon in summer when high temperatures can cause significant reading discrepancies. After finishing, it's best to measure again to ensure the pressure isn't too far off, and driving a few laps will help it reset.


