John M. Arnaud
Over the years, the air-filter experts at K&N have proven (in their in-house filtration test lab, no less) that the secret to increasing airflow to your engine without sacrificing protection lies in their exclusive air filter oil. This oil, which permeates a filter’s cotton fibers, grabs dust and other microscopic contaminants and keeps them from entering your system. Non-oiled paper filters don’t even come close.
So the question isn’t whether you should be using an oiled filter (you should); instead, you should be asking “How much should I use?” and “How do I apply it?” The answers to those questions depend on which delivery system you use: squeeze bottle or aerosol applicator. Read on for the scoop from K&N:
Apply the air filter oil evenly along the crown of each pleat, then allow the oil to wick for 20 minutes before touching up any light areas on either side of the filter.
Spray the oil evenly along the crown of each pleat, holding the spray nozzle about 3” away from the filter. Allow the oil to wick for 20 minutes, then touch up any light areas on either side of the filter.
Most K&N air filters are oiled at the factory, so reoiling shouldn’t be necessary until it’s time to clean your filter, usually at 50,000 or 100,000 miles, depending on your application. K&N’s Recharger kits contain everything you need to freshen up your filter, including filter cleaner and your choice of oil dispenser.
Head on over to your local Total Truck Centers retailer to pick up a K&N Recharger kit, or find a local affiliated store using our dealer locator.
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Though this is not a paid review, this content has been produced by The AAM Group™ in support of manufacturers with whom it has a business relationship.