How Performance Air Filters Work
Whether it’s a Dodge Ram air filter, a Toyota Tacoma air filter or a Ford Pinto air filter, if it’s the OEM filter, it’s made of paper. The paper forms a tight weave that lets the air pass but catches the crud. The problem is that they eventually get clogged with the crud and need replacing. Not really a big deal, but it will cost you 20 bucks every time, and you’re forced to toss something else in the local landfill.
Then there are reusable performance filters from brands like K&N air filters and Green air filters. These are made from a cotton-gauze weave that’s saturated with special oil. The cotton lets way more air through, thus adding performance, and the oil catches all the crud. And, when they get clogged, you simply wash, re-oil and reinstall. No trash and your filter lasts for life.