arizonataylor profile image 80

Do nitrogen-filled tires improve gas mileage?


A local tire shop is filling tires with nitrogen for seven dollars a tire. Will I ever save enough gas to make this worth my while, or is this just a gimmick?

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Keith Bartlett (edsci) says

4 years ago
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MikeNV profile image77

MikeNV says

4 years ago
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working