This is the also one of the easiest jobs a person can do to their car. A car with a clean air filter is a happy car. Depending on the make your car you may need a screwdriver in order to open the air filter box. A dirty air filter is restrictive and forces the car to use more fuel. A car needs a clean air filter in order to breathe clean air.
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| K&N High Flow Air Filter |
Depending on your budget you may need an paper air filter that can go for 15-50 dollars depending of the make your car or you can buy a K&N High Flow Air Filter and never have to worry about replacing another air filter. I chose to buy a K&N Filter because they stay for the life of your car and it sure beats having to buy more air filters. They claim to increase gas mileage and horsepower gains because it is less restrictive and allows more air flow into the engine. In my car I've noticed a 1 mpg increase, my accelerates faster and the exhaust sounds more "throaty". It is important for the car to receive the adequate of air in order to operate in normal conditions, check your air filters. If you hold the air filter next to the sun and you cannot see past it, then its time for a new air filter. Having a clean air filter will help the car perform better and protect it from harmful contaminants.
Most vehicles manufactured since the mid-1970s have thermostatic air intake systems that regulate the temperature of the air entering the engine's intake tract, providing warm air when the engine is cold and cold air when the engine is warm to maximize performance, efficiency, and fuel economy. Aftermarket cold air intake systems are marketed with claims of increased engine efficiency and performance. The putative principle behind a cold air intake is that cooler air has a higher density, thus containing more oxygen per volume unit than warmer air.
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