I've searched on BITOG and it seems like there are a few who are using their Amsoil filters for more than 1 oil change. I'd like to use an Ea15K for another oil change to reach the 15,000 mile mark with a single filter. Is this considered safe? I know there are those who will argue that the filter is cheap enough to just change each time, but do we REALLY need to change the oil filter each time? It seems if the media is strong enough and nothing breaks/wears down, we should be able to reduce waste and keep using the filters?