I'm curious how some of you clean and oil air filters. I'm getting a toomey pipe kit that comes with a new uni filter. I figured that the filter will need to be oiled before installation. I used to be able to air filter oil in an aerosol can but I can only find K&N filter oil. I'm curious if I can use KN on a uni filter without causing any problems. I did a forum search and couldn't find anything. Hope someone can help.