Restore Your Diesel Engine Performance With Archoil AR6400-D Fuel System Cleaner Review

Cold start on my truck has been horrible. Rough idle stumbling until it warms up. I’ve put this on with a quarter tank then filled up. Within 50 miles the rough morning starts are much better. The truck runs noticeably smoother when warm with more power. My wife said it sounds quieter when I pulled up from work today. I know I had a semi bad fuel injector that was causing my rough idle in the morning. It seems to have clears it up.

Let me start by saying that I am an Archoil fan, so I might be a little biased. I used the AR6400-D in my mini excavator that has a Kubota diesel. I bought the machine used and was told that the fuel system had been completely cleaned out. It was difficult to start so I used all of the 16oz in 5 gal of diesel (tank was practically empty). I started it and let it, letting it run for about 15 minutes with 3/4 throttle and shut it off. The next day,it started easier and in a week's time it has…

I recently used Archoil AR6400-D Diesel Fuel System Clean and was blown away by the results. I have a diesel truck that has been experiencing some performance issues and after using this product, the difference was night and day.The fuel system clean is very easy to use, simply add it to your fuel tank and let it work its magic. After the first use, I noticed a significant increase in horsepower and torque. The fuel consumption also improved, which is an added bonus.Not only did the AR6400-D…

In all fairness I am not sure if this product was the cause of problem or not but after running 1/2 tank of fuel while towing my vehicle shut down. Codes showed a bad DPF. We took it off and the insides of the DPF had broken to pieces. Honeycomb bits falling out of it. Not sure if this stuff got my DPF too hot but it is toast. My vehicle is a 2017 Ram Ecodiesel with 45k miles.

My 2008 motorhome with a 6.7L Cummins was running poorly: sluggish throttle, terrible mileage and slow starts. I replaced various filters (fuel, air), sensors and other components with no change in performance. I added a bottle of Archoil AR6400-D to the tank and within 100 miles there was a very noticeable increase in performance. After a couple of tanks my mileage went from 6 to 10mpg. I used to have to keep it floored to hold 60 miles per hour and now it holds 65 easily. Highly recommended.

Followed dosing instructions for my 6.0 Powerstroke, Accelerations are smoother and seems to have made the engine idled Quieter!

Put this in my tank with a fresh fill up and noticed a better running truck within 50 miles or so. Made my 06 more responsive and turbo sounded happier. It also seemed to burn cleaner, my truck does have custom tunes and stage 2 Powermax.

This stuff is AMAZING. I have an 04 5.9 dodge cummins. I had an injector on the way out. Super rough high idle, running rough between 50-60mph. I looked up a set of injectors. $700 for just the parts. I seen this advertised on facebook before. It's only $25. I thought "well I've spent $25 on dumber things" and clicked order. Dumped it in the tank with the next fill up. Half way through the tank I didn't feel much difference. I was driving it like an old lady for the time being because of the…

It was cool it was not as good as the one i used previous. But after a L.A. to s.d. at 2am 100mph + it finally went off. The other one i just put it in and not even 10 min poof re-gen

I used this product in December of 2020, about 5 thousand miles ago. I regularly use the Archoil oil additive and try to use the diesel fuel treatment too. As I was getting my emissions done today I found my inspection sheet from just before I used the Archoil Fuel System Cleaner. As you can see, this product alone lowered my Opacity reading by 2.4 points! Great product, works better than expected.

Didn't really do much. Wouldn't buy again. I still regen every 1/4 tank or 4 times per tank. Switched to oem ford power struck fuel treatment $8.30 for powerstrokes 1 bottle teats 4 tanks. I now regenerate 1 time per tank.

This was one of those products that you try but possibly can't see the difference. I pulled off the turbo pipe on the exhaust side and WOW! I'll be using this every 5k miles.

I had been having check engine light issues with my 2011 Super Duty (71K miles) for several months Took it the local Ford dealership and came away $850 poorer AND another check engine light before I got home. Took it back to the dealership and was told I needed a new turbo which would cost about $4000. At that time it had an engine code of P132B that couldn't be cleared. Put in a full bottle of AR3400-D and filled tank and took a 200 mile drive. The engine code cleared itself by the end of the…

Dpf filter ram 3.0 ecoDiesel 2018 is 100% full. Absent, forced regen, this product is awesome! Huge blast of power but no reduction in clog percentages.

I ran the tank near dry, then dumped in the AR6400-D and a tankful of fresh fuel.By the time I had 50 miles on the tank, my average MPG had skyrocketed from 13.3 MPG averageto 18.7 . Normal speeds, driving conditions etc. Truck is a 2017 F350 XLT, obviously with a 6.7Ldiesel. Outstanding product.I have been told that the additive itself is responsible for a good part of the mileage increase, so it won't stay that high on the next tank. Be that as it may, the truck is running like a top and I'll

For the cost, it paid for itself within one tanknof diesel. I have a 36 gallon tank. Mileage improved 1mpg after use, sounds insignificant but it does help out with the price gouging at the pumps

I bought this product since everyone mentioned it could improve fuel milage but a day after I use it my truck was dying at idle or when taking off from a Stop Sign or Stop Light, I thought it could save me some money but now I will have to spend thousands for a new fuel system and my business will lose clients for not mowing their lawns since it was the only truck for my lawn service.I think this product or brand should pay for any repairs made due to its use!2012 F-250 XL 6.7

Are used it and didn’t notice any difference in performance or mileage when I bought it it was five dollars a bottle now it’s greatly overpriced at $20 a bottle no free shipping they roll it in the price

I did use on my adui Q7 TDI. I don't recommend someone have to try on specially audi. Create alots problems. That's my review!

I use this twice a year in my 7.3L diesel, I also use Archoil 6200 with every fill up year around. These are the ONLY additives I use in my truck.