The air injection system of a car provides air for proper fuel combustion. Therefore it needs an efficient cleaning method. That is why air filters exist. They entrap dust and debris present in the air before it enters the engine.
A dirty air filter creates a barrier that prevents the air from entering the combustion chamber in large enough quantities. That has a direct influence on your vehicle’s power and consequently, fuel consumption. The micro particles of the polluted air have an extremely negative effect on the electronic system that controls the air injection into the combustion chamber. This can damage the flow meter, and you will have to buy a new one. Those particles can also deteriorate the combustion chamber itself, leaving fissures on its interior walls. In that case you may even have to replace the entire engine.
Car manufacturers usually recommend replacing your air filter after 30-40 thousand kilometers. This would be accurate for ideal conditions. However, big amounts of dust in cities’ air, sudden temperature drops, low quality of the roadway, among many others, can reduce the lifetime of the air filter. So a more realistic figure would be around 10-15 thousand kilometers.
Remember that you have to replace the air filter before it gets so dirty that it starts to obstruct the air flow into the combustion chamber. Don’t buy cheap air filters to try to save some pennies. It is much better to opt for a high-quality filter that will protect your car’s engine well. JC Premium air filters can entrap up to 99.97% of harmful particles, offering more stable filtration efficiency than cheap air filters.
It is not difficult to replace the air filter yourself. The plastic frame where the filter should go is usually located in the upper part of the engine. Just open the hood, remove the old filter and place the new one in the plastic frame.