 Like maybe you start it and you drive it a couple blocks and park it or start it and move around the garage. They might be starting to foul where it's time to change it. It's an 02. I mean, we're talking 20 years old, 23 years old. It's definitely not going to hurt to change them just for age. But on the other hand, I have spark plugs in a Model T that were put in in 1975 that are still perfect. There's no reason to change them. I'm not going to. The electrode's not burnt. They're not fouled. There's no reason to change them.