My fuel economy seems to be getting worse. The check engine light has not come on. Does it make any sense changing the oxygen sensors as a way to improve fuel economy? Any other ideas besides the air cleaner needing to be fresh? Thanks
My fuel economy seems to be getting worse. The check engine light has not come on. Does it make any sense changing the oxygen sensors as a way to improve fuel economy? Any other ideas besides the air cleaner needing to be fresh? Thanks
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