300k 6.0 powerstroke started having severe stiction issues this winter. Figured I'd have to replace injectors but I would try this as a last ditch effort. I'm sure glad I did. Within the first day I noticed a difference. Within the first week almost all of my stiction issues are gone. If you have stiction I HIGHLY recommend trying this first.
2004 f350 6.0Sold on your products
Didn't notice my hard start or smoke get better, did notice however that the truck itself is running smoother (still clattering 7.3 lol) I know for a fact that injector 7 is sticking, so this isn't a fair review
I tell every diesel owner that asks me what I’m putting in my fuel and I also use friction mod in my oil
Work's as well as they promote it.