 or a gasoline-contaminated oil as a byproduct. So that's why I'm thinking more towards fuel. 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, and change that oil again, and then look at it again in 500 miles. What does it look like?