The people that question me about what I said, go log some real world results. I have and I am speaking from experience. You on the other hand seem to be speculating and making theories. Go ask any programmer that knows how these engines work and see what they say about a 18k mod. Especially if you want to compare to big oil. They will all agree on the same answer, and you would be surprised what that answer would be. If you want to leave your trucks stock that's fine, but if you want to start comparing what mod does things better, than you should have an open mind and not just babble about how "in theory" things say this and be so close minded not to except the things that people are discovering in the real world. You guys bash TDS, but there is a sh!t load more knowledge floating around the than here, with or wiothout the drama. Call it what you will, but don't be so closed minded just because it differs from what you think or because your a ford tech. I have a very good friend that is a ford tech and he seems to think a lot different than you.