Why do you need to add air to your tires when it gets cold, but you don’t have to release air from your tires when it warms up?
In: Other
Recommended tire pressure ratings take a few different factors into account, including but not limited to fuel economy, towing and hauling capacity, and the health of the tire itself. Your tire’s performance and health is at greater risk when it’s pressure goes down versus when it goes up. An under inflated tire even at rest risks damage to the sidewall from the crushing force of the car’s weight. On the other hand, most tires have a recommended inflation pressure that is actually much lower than its burst pressure. If you check your tire sidewall on a typical stock sedan, it probably has a max rating of around 80 psi or so, but the vehicle user manual probably recommends only 35 to 40 psi. If your tire pressure goes up slightly in hot weather, it isn’t likely to put your tires at any sort of risk.
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