 for your injector pump and the injectors and things. There's got to be a lot of politics involved in this because, to me, if they take the sulfur and the lubrication additives out of the diesel fuel for emissions, right? Let's make them cleaner. But then a company can add in fuel additives in order to get them to be good for the vehicle. So now everybody's running these fuel additives. What are the... I don't know what the emissions levels are of a dry, plain diesel engine.