Review on Restore Your Diesel Engine Performance With Archoil AR6400-D Fuel System Cleaner by John Kahsar

I bought this with the kit oil friction modifier, and the diesel treatment. The 6400 however, saved my '08 F-250 6.4 turbo. I started to get turbo error codes as it was starting to clog up. I was getting bogged down trying to get over 50mph. Turbo PSI would go way to 40 even slowly trying to rev up to 55mph.I only put this in my truck first to see if it would help, drove for a few days and just to be sure took her to the shop. Well by the time the shop looked at it all the error codes cleared and there was nothing to fix!After getting it back it ran great. So I changed the oil adding the friction modifier and man that helps any cold starts and just seems to run better overall! Now I religiously use the diesel treatment at every fill up and plan to always use the cleaner and friction modifier every oil change. This stuff saved me thousands of dollars for now and I would bet will prolong my trucks life. Thank you!