Used it twice so far and have experienced great results.
Amazing stuff, My truck has regained the power and responsiveness it had when new.
This really cleaned the engine performance of my 2013 FX4,
excellant as always defintily works
I have been using Archoil products for around the last 7 years. I first started with the AR9100 and AR6200 in my 05 F350 6.0. Made me a believer after my 1st oil change. The sound of my engine changed, idle smoothed out immediately. Had a slight stiction issue- gone. Used the AR6400D and my truck runs like new. I also use the AR9100 in my heavily modified 87 ThunderBird 5.0 Turbo Coupe. I use the AR9100 every oil change in my truck and car. I will be using it in my 2019 Genesis G80 5.0 as soon as it has enough millage for an oil change.