A dirty air filter can have a significant impact on engine performance, reducing the amount of clean air that reaches the engine and decreasing its power and acceleration. This can lead to a decrease in fuel efficiency and an increase in emissions. Replacing the air filter with a new, clean one can improve engine acceleration and reduce fuel consumption. A dirty or shabby air filter restricts air flow and reduces oxygen in the mixture, causing the engine to consume more fuel to generate enough energy to move at the same speed or distance that the vehicle could travel with a clean, functional air filter.
Aftermarket air filters can increase engine performance and, to some extent, increase fuel consumption. However, this may be more noticeable in older cars, where the overall air intake is shaped differently from newer models. For newer models, some “high-performance” air filters may only make a negligible difference (although, of course, this varies by car model and air filter type).The main purpose of a car air filter is to ensure that large items, such as leaves, insects, dust, debris, and other materials, do not enter delicate engine systems. However, you may want to consider replacing your air filter frequently if you live in a region with a lot of dirt and dust. Consult an automotive professional about air filter options.
Here are some tips to help you understand air filters and how they can affect your car's performance:
- A clean, properly installed air filter improves fuel economy, increases engine life, reduces emissions, and increases acceleration.
- If you notice unusual noises, particularly when coughing, bursting or spitting, it means that the engine is not getting enough air flow, so the air filter needs to be changed.
- When replacing an air filter, some people opt for non-standard aftermarket air filters to help improve their car's performance.