what oil are you supposed to use to oil these filters with. never owned one and pulled the tank off and realized i had one.
k&n sells a refresh kit with a cleaner and oil. i found it at the local auto store no prob
K&N reharger kit http://www.knfilters.com/search/product.aspx?Prod=99-5000 (http://www.knfilters.com/search/product.aspx?Prod=99-5000)