It may be expensive, but its not useless. If you are towing extremely heavy loads, it probably makes the 6 liter reliable. Sure, maybe its not ALL necessary but then again he SAYS that in the video, doesn't he? He states IN THE VIDEO, you can pick any or all of these services, or just go with the filtration system at the very least.

And besides, didn't you read my entire post? He is educating people who are interested in learning. He hasn't sold me a dang thing, but he has helped me personally and I have learned a ton from his videos.

 

I bought my F250 7.3l with 299,880 miles on it few months ago. Just finished 2500 miles trip while hauling 7200lb boat one way. Run like a champ and never missed a beat. While empty I was recording up to 17 mpg on the extended cab flatbed.