According to the Goodyear Tire and Rubber Company, a 4 psi decrease in pressure below the recommended amount can result in a 10% loss of tread life.

Name: According to the Goodyear Tire and Rubber Company, a 4 psi decrease in pressure below the recommended amount can result in a 10% loss of tread life.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Goodyear states that underinflation can lead to increased tread wear and reduced tire life because it causes the tire to overflex, leading to excessive heat buildup and premature wear.