i would just replace if money is not an issue. too much work to clean and re oil, plus you run the risk of over or under oiling your filter.
Have you ever looked at a K&N fresh out of the box? LOL they bath those filters in that stuff at the factory. Just recharge, why throw your money away?
I have a new 10" S&B Filter I am selling if anyone is interested.
the RAI filter is 4x9" will a 10" fit? mine was very tight to install