A better question is why wouldn't you? I've never understood why, when something is a common problem that can and more than likely will leave you stranded, it's not fixed prior. I owned a 6.0 power stroke that everyone had problems with except for a few nay Sayers. I personally don't have time to sit on the side of the road when and if. I did the egr delete and a new oil cooler. Magically with 200k miles I was never stranded. I get it there are a few that still run them. But who wants to deal with something so finicky? Must have 12.8v, must have grease, must be perfectly clean. That's fine if it rarely gets ridden or you're retired and have time to mess with it constantly. I want to know mine is going to start and have lights and function properly without having to deal with bs just to keep something simple working.