All ya need to do is go down to your local auto parts store and ask them for a K&N filter cleaning kit. It should be around $15(u.s). It will come with the cleaning solution and the oil. They are both just in spray bottles. The cleaner will turn your filter grey/white because all it is a a cotton filter, and it is pink because of the oil. You just need to put enough oil on it to turn it that pink color...don't over saturate it.