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Engine Air Filter Replacement
When your technician changes your engine oil and filter, he will also inspect your air filter. You shouldn't need a new air filter at every oil change, but you will need to change it regularly. Listen to your technician's advice if they recommend that you change your air filter.
An air filter does what its name implies: it filters stuff out of the air. Air is drawn into your engine through the filter because your engine needs air to burn fuel. If the filter weren't there, a lot of dust and debris would get into the vehicle's engine. That dust and debris would get hot, burn and produce all kinds of ash and gumminess and would eventually clog up your engine.
Drop in an air filter and voilá! Problem solved.
Air filters themselves however will get clogged up with all the dirt and debris they clean out of the air and this starts blocking the airflow into the engine. Blocked airflow will reduce engine efficiency and increase fuel consumption.
It's also one of the simplest elements of routine preventive maintenance – and it protects against damage to expensive vehicle electronic systems. No one should have an excuse to drive their vehicle around with a dirty air filter.
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New Zealand, New Zealand 8441