 They're worth very little because they just don't have the material inside of them. So if you have a small problem with the van, it will be that much quicker for it to cause that converter not to work. After that first one, especially. Now, having said all of this, we would probably be going down a different path if you wouldn't have agreed that you've got a little bit of oil burning, you've got a higher mileage van, and it's probably not quite pure. Okay, here's one thing. The mechanics.