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🚗💨 Unlock your diesel’s hidden power—clean, boost, and dominate the road!
Archoil AR6400-D is a concentrated diesel fuel system cleaner designed to rapidly remove injector, turbo, and DPF deposits. Each 12 oz bottle treats 30-40 gallons of diesel, restoring fuel efficiency, smoother acceleration, and reduced emissions. Ideal for professional-grade diesel maintenance, it supports cleaner combustion and prolongs engine life when used regularly.










| ASIN | B08HDDY551 |
| Best Sellers Rank | #868 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Fuel Injectors #5 in Diesel Additives |
| Brand | Archoil |
| Brand Name | Archoil |
| Customer Reviews | 4.7 out of 5 stars 2,912 Reviews |
| Item Form | Liquid |
| Item Volume | 12 fluid ounces |
| Item Weight | 1.69 kg |
| Manufacturer | Archoil |
| Material Feature | liquid |
| Material Features | liquid |
| Number of Items | 4 |
| Part Number | AR6400D-4P |
| Scent | Unscented |
| Size | 12 Fl Oz (Pack of 4) |
| Specific Uses For Product | diesel fuel system |
| UPC | 608819244167 |
| Unit Count | 48 Fluid Ounces |
D**R
Great booster.
Works like a dream. Getting 2-3 more MPG.
C**R
Power increase
2017 Nissan 5.0 diesel Love it drive and performance is Great 4 more Miles per gallon on HWY just like a new engine tail pipes nice and clean I recommend running so smooth
G**L
Fantastic product
I just used this in my kabota L2501 tractor. I'm very satisfied with the performance of this cleaner. My tractor only has 200 hrs, but began to suffer fuel injection issues and severe loss of power. I received the cleaner this morning, mixed with diesel fuel and mowed 2 acres. Maybe half way thru the engine began sounding better, by the time I was done my engine is back to normal 😎. Total running time was approximately 1.5 hrs. HIGHLY RECOMMEND THIS PRODUCT
A**R
Diesel Cleaner. Archoil 6500 once annually and ArchOil AR 6400 at every fill.
Archoil AR6400- Diesel is one of the best on the market. I have a GMC 3.0 Diesel which like most newer vehicles, use "direct intake" vs a fuel rail.The Archoil AR 6400 helps clean the engine for carbon build up, especially lthe backside of the pistons. I've seen an increase in mileage where usual mpg is about 29 to 30, after the treatment I'm experiencing 33 on the hwy. ALSO,I use Archoil AR 6500 at every fuel up for lubricity.
T**S
Great product
using every 5,000 miles on my 6.0 powerstroke works great. You can really feel and hear the difference it makes
T**E
Not bad for the money
Make sure you fill your tank up and pour the hole bottle in . Run it Till the tank is almost empty and fill it up again. My truck seems to be running a lot better. Turbocharger kicks in faster I would definitely recommend it
R**.
Lives up to advertized benefits
Definitely affected mpg after usage in 1 tank.
K**K
Well, worth the money
Awesome product
J**N
très bien
tres bien
M**A
Surprisingly Amazing!
My Truck was running like garbage! 2000 F-250 7.3L. Was throwing 9 engine codes, would barely start, usually wouldn't stay running, and if I tried to drive it anywhere it was an adventure, no power, could die anytime and strand you, a nightmare. So I bought this Archoil Diesel Fuel system Cleaner and Archoil9100 Friction Modifier. Expecting to be disappointed but willing to take the risk before spending big money on repairs at a garage. I dumped the products in, and tried to start the truck right away (block heater had been plugged in for hours). It was about -8C out; couldn't get the truck to run for more than 45 seconds. Did this 3 times. The next day after leaving it plugged in over night, it starts under duress, but I manage to get the rpms up to 2000 and hold them there for about 5 mins. I let the truck come back to idle and leave it idling for 30 mins. Come back outside and it's still idling, good sign, sounds good too. Decide I'll drive it 1 km down the road and see how it drives to the gas station, I needed to fill it up after all, I hadn't followed the mix instructions on the fuel system Cleaner. I baby it down the road. Fill it up. Decide to give'r a rip on the way home and it runs awesome, decide I'll rip to the next town and get a coffee, truck pulls and cruises at 120 km/h easily. 2 weeks later ish ans still running great. Also I wiped the engine codes and ran it for a few hundred kms and now only have 1 code that shows up. Awesome product.
D**N
Fuel conditioner
I just love this product, it surely is worth the money a person pays. Truck is running smoother since I've put it in the fuel tank!
A**N
Bon produit
Recommandé pour les « professionnels » qui aiment entretenir les moteurs d'automobiles.
C**K
Archoil is Amazing!!
I have used most of Archoils products with success!! I was skeptical about the AR-9100 until I used it, where I noticed the engine was quieter, Stiction was nearly gone, and the truck just seemed to run better. I wasn't sure how well the AR-6400 was going do, as there wasn't much for me to compare it to. My brother has a friend that has to clean his turbo yearly to remedy the sticking VGT, but with running this every couple of months, I have had no issues, and when I did rebuild my turbo, I didn't have to put much time into cleaning the VGT system. Using AR-6500 I have seen an improvement in my fuel mileage. I will continue to use Archoil products in my vehicles!
Trustpilot
1 day ago
5 days ago