"I have a 2006 F350 6.0 and have gone thru it all, with 235,000 miles on it now, I lost 3 cylinders according to the computer reading and was freaking out that the repair was going to cost $2500 to $4500, after reading this web site I decided to try out the fuel and oil treatment, at $80 for both additives it was worth a try, I changed the oil and added the 2 qt of Hotshot's (Stiction Eliminator) and put the fuel additive (Diesel Extreme) in as well, I put a weight on the gas pedal to set at about 1400 RPMs and let it run, after 8 hrs it was purring like a kitten, retested the injectors with the computer and all are firing correctly, I never write reviews but I had too on this one, I didn't have the money to replace injectors. I am sold and will keep up with the maintenance that Hotshot recommends. Thanks."