 All right. I know. All right. You know, black like that usually is a sign of a rich running engine or a gasoline-contaminated oil as a byproduct. So that's why I'm thinking more towards fuel. You know, to look at those things that I suggested and you come back and say, hey, Ron, it's none of that. Well, we know what it's not. And then we do a little crankcase cleanup like I suggested with whatever AutoZone has, and I would trust their opinion.