Metro ServiceReplacing air filters is an inexpensive way to keep vehicles performing at peak capacity. ■ Metro service Vehicle owners likely know to check fluid levels and get their cars’ oil changed, but air filters may not be at the top of their maintenance checklists. Despite being a relatively inexpensive part, air filters often go overlooked. Air filters have an important job in a vehicle, prolonging the life span of engines and helping cars run more smoothly and efficiently. Purpose of vehicle air filters Vehicle combustion engines operate with a mixture of fuel and air. Without oxygen, gasoline or diesel fuels cannot burn properly and power the engine. The air filter’s

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