I think maybe you are trying to compare a dsl engine and all of it's many other advantages/benefits to a gasoline engine. And coming up with a fair comparison stating that it is because it is fueled with dsl , that's why you conclude that it has more power.

What I am saying is that it is not due to the fuel, but all of the other things that most dsl's have is why they are getting good numbers. A general statement like "dsl engines have more tork" is just not true, because "gas engines have more tork"