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How to Tell If Your Car Air Filter needs changing?

 

How to tell if your car air filter needs changing is important because a clean air filter is a necessity for the proper operation of a car. A clean air filter results in improved gas mileage, better acceleration, increased engine life, lower emissions and overall improved engine performance.

 


Not only does an air filter clean the air entering the engine but it also prevents debris from entering the engine and causing damage. For each gallon of fuel the engine burns, it requires up to 10,000 gallons of clean air; thus why the air filter is such an important engine component. 

 


Symptoms of a dirty air filter vary but will often times include a noticeable decrease in gas mileage. Other symptoms are potential ignition problems cause by fouled spark plugs. A dirty air filter prevents the necessary volume of clean air from reaching the engine which affects the emission control systems of the car; reducing air flow and causing a too rich air-fuel mixture which can foul the spark plugs. Fouled spark plugs can create an engine miss, rough idle and even starting problems. In addition, a too rich fuel mixture increases engine deposits which may even cause the Service Engine Soon light to come on.