I want to wash out the provent 200 filter. Its black as the ace of spades and has only done about 15k. I don't really want to fork out $70 for the filter just yet. I have done a thread search but couldn't' find a definitive answer on this. I was thinking of using petrol to clean it out as it will dissolve the oil pretty well.
Just wondering if anyone else has wash their out and what do you use?

Thanks.