Archoil AR6400-D Diesel Fuel System Cleaner (Four Pack) - Cleans Injectors, Turbo & DPF

2014 F-550 had warning lights on stating regen was needed. not having a way to regen engine without travelling 2 hours to a mechanic, I tried the AR6400 because I had nothing to lose. I ran 3 tanks of fuel through the engine and all the warning lights were cleared. I havent used the AR6500 yet, but if it perfomes like the 6400 it is money well spent. I would further like to thank Archoil for replacing the entire order when one bottle was damaged in shipping. they are a very upstanding company and I will buy from them again. Good product.

2009 Cummins 360 ISL in a 36 Ft Motorhome, over 100k miles. I was experiencing frequent regen issues. Prior to leaving for annual winter travels, I added 2 bottles to my 100-gal fuel tank. Experienced higher temps on a couple of occasions, since then normal temps. Smoother acceleration and a slight bump in MPG. I will be adding the regular treatment every time I fuel. e

I have been using this product for over a year now and have noticed a difference in lesser regens and smother engine running. I have not gained much higher mileage but i do have a heavy foot!

Turbo seals went out. After rebuilding the turbo I was getting EGR codes. Oil leak plugged EGR and cooler. DPF was full of waste oil. After 3 treatments everything burned off and cleaned up. This stuff is amazing! I now use the regular treatment 2oz every fill up. A definite game changer truck runs better than ever! Thank You Archoil!

I bought a used truck with 63K miles on it and i used archoil products in my last diesel truck and thought I'd give it a try. After using this my milage increased, and throttle response even seemed better. I highly recommend this and will but it again.

I run AR6400-D in my Zetor Tractors to my Ford Powerstroke 7.3 and 6.7. The 6.7 is deleted and the Zetor are older tractors. My equipment seems to run smoother, but I have no seen any MPG increase

For months my truck would be throwing a NOX code even after I changed out both NOX sensors on my L5P. After running this fuel system cleaner in my truck, the check engine light has not thrown a code since. It's probably been two months and no code.. I think it definitely cleaned my DPF and my truck's running right now!

Awesome product, noticeable difference from any other product tried over the years. Regens less often, used to be every 200 miles or so now 600+ miles and I'm pretty sure the system is doing it at a certain time not milage. Regens faster when it does. What used to take days of driving to work 45 miles a day only takes a 20 minute ride down the highway Mpg up a bit too

This is my second order of the cleaner and I use the archoil diesel additive every fill up in my 2020 GMC 2500 HD, 6.6 Duramax, but I have not noticed any change in my mpg or my regen cycle frequency.. That said, I've not seen any negative effects either. Hopefully, good things are happening on the inside of my engine that I can't see. I'll continue to use your product..

Purchased for my 2008 Motor Home with 8.9 litre diesel pusher w/exhaust soot filter. Was stuck in traffic on freeway for 2 hrs, creeping ahead; bad for the soot filter. Regen light came on shortly thereafter. After talking with former pro truck driver at winter campground he recommended Archoil so I purchased enough for two services on the 130 gallon fuel tank. Will not put it in until we are ready to drive 1900 miles home. Expecting great things. Rod H in Texas