zaro

How to Oil a K&N Air Filter?

Published in Car Maintenance 3 mins read

To properly oil a K&N air filter, evenly apply K&N air filter oil spray along the crown of each pleat, holding the can's nozzle about three inches away. Allow the oil to wick for approximately 20 minutes, then touch up any lightly colored areas.

Detailed Steps for Oiling Your K&N Air Filter

Here's a more detailed guide on how to oil your K&N air filter after cleaning:

  1. Ensure the Filter is Clean and Dry: Before oiling, make sure your K&N air filter is completely clean and dry. Use K&N's air filter cleaner and follow the instructions carefully. Let the filter dry naturally; do not use compressed air or heat, as this can damage the filter media.

  2. Apply K&N Air Filter Oil: Use genuine K&N air filter oil. This oil is specially formulated to be sticky and not clog the filter.

  3. Spray Evenly: If using an aerosol spray, hold the nozzle approximately 3 inches away from the filter. Apply the oil evenly along the crown of each pleat. The goal is to achieve a consistent, reddish-pink color across the entire filter.

  4. Allow Oil to Wick: After the initial application, let the oil wick into the filter media for about 20 minutes. This allows the oil to saturate the cotton gauze evenly.

  5. Touch Up Light Spots: Inspect the filter for any light-colored areas that didn't receive enough oil. Touch up these spots with a light spray. Avoid over-oiling, as this can restrict airflow and potentially damage your engine.

  6. Reinstall the Filter: Once you're satisfied with the oil distribution, carefully reinstall the filter into your vehicle's airbox, ensuring a proper seal.

Important Considerations:

  • Over-Oiling: Avoid over-oiling. Excess oil can get sucked into the engine and cause problems with sensors (like the mass airflow sensor) and potentially even engine damage. If you accidentally over-oil, blot the excess with a clean paper towel.
  • Oil Type: Only use K&N air filter oil. Other oils may not have the correct viscosity and could damage the filter or your engine.
  • Frequency: Re-oil your filter every 30,000 to 50,000 miles, depending on driving conditions. More frequent cleaning and oiling may be necessary in dusty environments.
  • Visual Inspection: Regularly inspect your filter for dirt and debris. If you see a significant buildup, it's time to clean and re-oil.

By following these steps, you can ensure your K&N air filter performs optimally, providing improved airflow and engine protection.