Back to all

Blair's Ferry Automotive: Why Replace Your Engine Air Filter?

March 1, 2020

Just as our bodies need clean air to function properly, your vehicle engine needs clean air to operate efficiently. Let's go egghead for a minute. For every gallon of gas we burn driving on Marion streets, 20 pounds of carbon dioxide comes out the tailpipe. Question: how can a gallon of gas that weighs a little over six pounds produce 20 pounds of carbon dioxide?

The answer is that the carbon comes from the gasoline, but the oxygen comes from the air. You see, it takes about 12,000 gallons of air to burn a gallon of gas in your engine. Clearly, your vehicle needs a lot of air to keep going in Marion. A lot of clean air is best.

drive

You've seen the pictures of people in Japan wearing face masks. They want some kind of filter to keep unwanted pollution and germs out of their lungs. Well, your vehicle also works better when its internals are clean. When your vehicle air filter is dirty, it simply can't trap any more dirt, so the pollutants just pass through into your air intake system. From there it can clog your fuel injectors and even get into the motor itself. Not surprisingly, burning dust and pollen in your vehicle engine does you no good.

Replacing a dirty air filter at Blair's Ferry Automotive in Marion can improve your fuel economy by up to 10 percent. At today's Marion fuel prices, you should be able to pay for a new air filter before your next oil change.

The verdict: When your vehicle engine air filter needs to be replaced; it needs to be replaced. How often depends entirely on the level of air pollution where you drive in Iowa. A simple visual inspection at Blair's Ferry Automotive in Marion will tell you when you need a new engine air filter.

Blair's Ferry Automotive
1565 Blairs Ferry Rd.
Marion, Iowa 52302
319-447-6310
http://www.blairsferryautomotive.com


Need Service?

Request a Quote

More articles from Blairs Ferry Automotive

Go With the Flow (MAF Sensor Replacement)

January 25, 2026

A driver brought her vehicle into the shop the other day and told us how she was getting lousy fuel economy and that the engine was running rough. Plus, the Check Engine light was on. Our technician checked the code the engine had generated (why the Check Engine light was on) and found the prob... More

Getting Off to a Running Start (Starter Replacement)

January 18, 2026

When you start your vehicles engine, theres another motor that makes that whole process possible. Its called the starter, and its a small electric motor that gets your vehicle running. As you can imagine, its quite a chore for a little electric motor to turn over the big engine that powers you... More

No Fuel-ing! (Fuel Filter Replacement)

January 11, 2026

Your vehicle has a few filters you might be somewhat familiar with. Theres the oil filter that removes impurities from your engines oil, and a couple of different kinds of air filters that prevent contaminants from getting into the engine and the cabin. But you may not know that your vehicle als... More