Feuling BA Air Filter Oil And Cleaner Kit The Feuling BA Air Filter Oil and Cleaner Kit is designed to rejuvenate the Feuling BA Air Filter or Vented Dipstick breather elements to their optimal condition. The cleaner efficiently removes dirt, old filter oil, and particulates for easy washing away with water. Its air filter oil is formulated to remain within the cotton filter material's pleats, enhancing contaminant retention and sustaining peak performance. Features: Maintenance system for Feuling air cleaners and vented dipsticks Restores filters and breather elements to like new condition Made in the USA