Archoil AR6400-D Diesel Fuel System Cleaner (12 oz) Deep Clean - Injector Cleaner, Turbo & DPF Deposit Control

using every 5,000 miles on my 6.0 powerstroke works great. You can really feel and hear the difference it makes

It seemed to work fine. I didn’t notice anything different whatsoever, but I know it helps in lubrication of my cp4

1999 Volvo S70 GLT light pressure turbo, 138k. Check engine light P0234 code. Turbocharger Overboost condition. Most likely the waste gate on the turbo fouled with carbon. I am tired of working on the engine of this car. I thought I would try a bottle of Archoil cleaner. I put in the whole bottle in and filled the tank, 18 gallons. After a quarter of a tank burned the check engine light went away. And the car runs the best since I've had it. Smooth. More power and seems to be quieter too. Thumbs up. Good stuff. I'm sold.

The DPF warning light came on in my 2014 VW Touareg TDI Lux and it was suggested that I run a tank with this product before I spend a fortune at the dealer. (To be detailed, my tank is 26 gallons, and this bottle will treat 40 gallons. So, I used 3/4 of the bottle and filled my tank. Added the remainder of the bottle and 10 more gallons of diesel when my tank was half empty.) Voila! The light went off within driving about 50 miles and has never come back on. That was a couple of years ago and I now run an Archoil tank about every 6-7 months, for good measure. The fine folks at Archoil recommend every 5,000 miles. I'm probably near that ballpark. Great stuff!

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.

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

All I can say is this stuff increased my fuel milage by 6 miles per gallon I will be using nothing but Archoil in my fuel!

It is great runs super great 👌

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!

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.

Came highly recommended. No disappointment

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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!