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Tire Pressure Science Chalk Line

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We don't use the tire gauge when we figure out what pressure to run our tires at. We use crayons or chalk. Draw a line across the tread of the tire and drive in a straight line until you notice wear (usually 50-100 feet). Once that's done, we note the correct pressure front and rear for reference later.
Tire Pressure Tips - Air Pressure Science

 We don't use the tire gauge when we figure out what pressure to run our tires at. We use crayons or chalk. Draw a line across the tread of the tire and drive in a straight line until you notice wear (usually 50-100 feet). Once that's done, we note the correct pressure front and rear for reference later.  View Related Article

 

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