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The primary air filter does the filtering. The safety air filter, the slim inner element seated inside it, is a backup, not a second stage of filtration. It keeps dirt out of the engine while the prim …

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Key takeaways Is there a set number of cleanings? Why does everybody say two or three? What did our testing actually show? What ends a filter's life? How do you inspect an element before it goes bac …

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Key takeaways Why does this matter going into harvest? What do you need to clean a diesel air filter? How do you clean a diesel air filter, step by step? Why does straight shop air ruin a filter? Wh …

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Why can't you tell if a filter needs service by looking at it? What does an air filter restriction gauge actually measure? How do you read the gauge? What restriction number means the filter needs s …

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How often you clean a diesel air filter comes down to how dirty the air is, not a number on the calendar. In heavy dust, think harvest, an aggregate yard, a feedlot, a dry haul road, plan on cleaning …

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Clean a diesel air filter when it is just packed with dry dust. Replace it when the media or the seal is damaged. That is the whole call. A primary filter that is dirty but sound, with no holes, no so …

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