Six easy ways to save gas this summer

5. Replace the engine air filter

E.H. Gill/Custom Medical Stock Photo/Newscom/File
Replacing a clogged air filter with a new one (such as the one pictured here in this 2010 file photo) can improve fuel economy up to 14 percent.

Your car’s air filter works to remove dirt, debris, and particles that might otherwise damage your engine. Replacing a clogged air filter on an older car with a carbureted engine may improve fuel economy 2 to 6 percent under normal replacement conditions, or up to 14 percent if the filter is so clogged that it significantly affects drivability.

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