Hey..... some of us only have 10 year old diesels..... hoping they can make it to 20 years. (some of those electronics are pretty frightening)

I'm pretty new to diesels. It seems like everyone who sells diesel in the Berks County area of PA uses the same price signs on the curb, so I sort of sence that they all get fuel from the same places. I was buying the 'cheapest' fuel for a while, and last year I developed a nasty 'nailing' problem, that I haven't quite solve yet (diesel purge by an indy, and more recently sea foam in a fuel filter change)

I'm pretty interested in what additives actually help. I've tried diesel clean. It doesn't do much for me except may be sound like it's nailing more. I do get less smoke, but... I also sence that my power is down also. Yesterday, just for yuks, made sure I still have power (120 mph), so... power isn't a problem. I just wish I could make the car idle smooth and quiet again.