"Seeing this F-350 go from a cold-blooded, rough-running basket case to a truck that ran as smooth as it did the day it left the dealership definitely made believers out of us."
"Archoil is the Real Deal"
I have a 7.3 and decided to try the friction modifier and switch to T6 and the truck loves this combo!
I watched a Youtube video, from a car collector who recommends your products. Based on that alone is why I made my purchase.
Great product use it in every diesel I own.
Side-by-side my 6.7 powerstroke vs my brothers: mine with the the AR9100 has a much smoother running sound.
It works and it is well worth the money,please keep making it.