For every change of 10 degrees in the outside temperature, tire pressure changes about 1 psi. So if you fill your tires to 33 psi when it’s 75 degrees out, and it drops to 25 degrees at night, your tires will be at 28 psi. That’s too low. You won’t notice any difference in tire wear, handling or braking.Click to see full answer. Also asked, is 27 psi too low?If 28 psi is too low compared to what the pressure should be, this will put too much wear on the shoulders of the tire. The shoulders will wear prematurely, which shortens the lifespan of the tires. Soft tires can make the vehicle feel a bit unstable going around corners.Also Know, whats the lowest PSI you should drive on? There actually are simple The average passenger automobile/SUV/light truck has a recommended tire PSI of 30 to 35. If you allow your tire pressure to drop any more than 5 PSI below recommended you will significantly lose handling, stability can control. In this manner, is 26 too low for tire pressure? Proper Tire Inflation A tire inflated to 30 psi at 70 degrees, for example, could drop as low as 26 psi at the freezing point. The recommended tire pressure is displayed in your vehicle, typically on a sticker inside the glove box door or on one of the doorposts. It’s also in your owner’s manual.What PSI should my tires be?The Optimum. You’ll find the manufacturer’s optimum or recommended tire pressure for your car on a sticker in the door jamb, or in your owner’s manual. Some models even place the stickers on the trunk lid, in the console or on the fuel door. Recommended pressure is usually between 30 and 35 PSI.