Under-inflated tires will:

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Multiple Choice

Under-inflated tires will:

Explanation:
Low tire pressure increases rolling resistance because the tire deforms more at the contact patch as it rolls. That extra flex wastes energy, so the engine has to work harder to maintain the same speed, which lowers fuel economy. Over time this also wears tires unevenly and can lead to heat buildup, but the key idea here is that under-inflation makes you burn more fuel. It won’t improve fuel economy, and it can worsen handling and braking as well, so the effect on top speed isn’t positive either.

Low tire pressure increases rolling resistance because the tire deforms more at the contact patch as it rolls. That extra flex wastes energy, so the engine has to work harder to maintain the same speed, which lowers fuel economy. Over time this also wears tires unevenly and can lead to heat buildup, but the key idea here is that under-inflation makes you burn more fuel. It won’t improve fuel economy, and it can worsen handling and braking as well, so the effect on top speed isn’t positive either.

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