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Why do I need to change my air filter?

Andrei Obolenskiy • March 29, 2023

Welcome to Main Street Automotive, your trusted auto shop in Walnut Creek, CA. Today we will be discussing an essential component of your vehicle's maintenance - the air filter. Many vehicle owners often wonder why it is necessary to change their air filter regularly. In this blog post, we will discuss the importance of changing your air filter, how often to change it, and the benefits that come with it.


First and foremost, what does an air filter do? Simply put, it prevents dirt, debris, and other contaminants from entering your engine. Over time, your air filter can become clogged with dirt, dust, and other particles, making it difficult for air to flow freely into the engine. When this happens, it can lead to reduced performance, decreased fuel efficiency, and even damage to your engine.


At Main Street Automotive, we recommend changing your air filter every 12,000 to 15,000 miles, or every 12 months, whichever comes first. However, if you frequently drive on dirt roads or in areas with heavy air pollution, you may need to change your air filter more often.


Additionally, if you notice any of the following signs, it may be time to replace your air filter:

  1. Reduced fuel efficiency
  2. Unusual engine sounds
  3. Decreased acceleration
  4. Black smoke or flames coming from the exhaust


Now that we've covered the basics of air filters let's discuss the benefits of replacing them regularly. One of the most significant benefits is improved fuel efficiency. When your air filter is clean, it allows for proper airflow into the engine, resulting in improved fuel economy. Additionally, regular air filter replacements can help prolong the life of your engine, saving you money on costly repairs down the road.

At Main Street Automotive, we offer high-quality air filters that are designed to fit your specific vehicle make and model. Our team of expert technicians can help you choose the right air filter for your vehicle and install it quickly and efficiently.


In conclusion, changing your air filter is an essential part of your vehicle's maintenance. It not only improves fuel efficiency but also prolongs the life of your engine. At Main Street Automotive, we are committed to providing you with the highest quality service and products to keep your vehicle running smoothly. Contact us today to schedule an appointment for air filter replacement or any other automotive service needs. Thank you for choosing Main Street Automotive in Walnut Creek, CA, and we look forward to serving you soon!


Main Street Automotive is located in the heart of downtown Walnut Creek, CA, and has been serving the community since 1998. We are a family-owned and operated business dedicated to providing our customers with the highest level of service and quality products. Our team of ASE-certified technicians has the knowledge and expertise to handle all of your automotive needs, from routine maintenance to complex repairs. Contact us today to schedule an appointment or visit us at 123 Main St, Walnut Creek, CA 94596.

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