Q:

How can you flatten a tire?

A:

Safely deflate a tire by depressing the relief valve located at the top of its valve stem. Tires are commonly bled or aired down to one-third of their standard highway-driving pressure to allow for better traction when driven in snow or sand. Bleeding down works by increasing each tire's footprint.

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Full Answer

Consult the auto manufacturer's specifications located on the inside seam of the door panel to find the recommended air pressure, as the numbers embossed on a tire's sidewall are maximum inflation values. Tire pressure is measured on cold tires for accuracy. Wait three hours before testing the tires on a warm car.

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