I replaced mine here not too long ago, but I think when it is time for it again, I thinking of just stripping the guts of it and putting in a drain tube. It is my understanding from other posts I have seen other places that it doesn't effect the performance in any way. Plus this would keep it from putting any fluid back into the turbo if any at all. I have seen very little residue on my turbo when changing my oil so I think it is only going into the turbo if you over fill the oil and it blows by.