Does hole in muffler affect gas mileage?

Asked by Magnus Myers

internal damage to your muffler may also cause the engine to run rough, without making your exhaust sound any louder. call your mechanic before it gets worse. your fuel economy drops noticeably: a damaged or loose muffler can harm your gas mileage — as can a number of other problems.

Rosa Pérez, BA Contributor
Rosa Pérez
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