An orange-and-yellow engine air filter being assembled in Mann+Hummel's factory

You Need to Change Your Car’s Engine Air Filter

Engine air filter replacement guide highlights: The engine air filter keeps dirt and other junk from contaminating your car’s engine A clogged, dirty air filter can reduce your engine’s performance, damage your spark plugs, as well as cause rough idling, misfires, and even backfires A new filter usually costs no more than $40 and installing …

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