Under-inflated tires will:

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Multiple Choice

Under-inflated tires will:

Explanation:
Under-inflated tires cause more rolling resistance because the tire has to flex and deform more as it rolls. That extra energy the engine must supply to push the car forward is wasted as heat and deformation, so you end up using more fuel. Properly inflated tires reduce this resistance, helping you get better fuel economy. The other options don’t fit because the fuel economy doesn’t improve or stay the same when tires are under-inflated, and the effect isn’t limited to winter.

Under-inflated tires cause more rolling resistance because the tire has to flex and deform more as it rolls. That extra energy the engine must supply to push the car forward is wasted as heat and deformation, so you end up using more fuel. Properly inflated tires reduce this resistance, helping you get better fuel economy. The other options don’t fit because the fuel economy doesn’t improve or stay the same when tires are under-inflated, and the effect isn’t limited to winter.

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