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

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.

This has been a great product, we have a fleet of box trucks. One truck was having frequent regen issues we started using this product and after a few uses we started seeing results. In my experience its not a one bottle fix all. but when used as directed it can prevent and help fix minor issues in the DPF system. I would recommend using this product before issues arise! But also a good option for minor DPF issues

My 2024 Ram with the HO cummins was throwing lights for too frequent regen. I thought I'd give this a try, but honestly, I expected to be visiting the mechanic soon. After 1/2 tank of fuel with this treatment the check engine light went out, the DPF indicator went to zero and the truck runs better and gets better fuel economy. I'm a believer; I'll be using this stuff from now on. Highly recommended.

Cleaned my injectors within 100 miles

I was getting frequent regens in my 3.0L Duramax. I've run HSS Diesel extreme before and decided to try Archoil out both Fuel system cleaner and fuel treatment. Overall results are positive, but for the extra cost I'm not sure it's completely worth it in my experience.

Great product throttle response was superb 👏

This stuff works great. I had a check engine light for clogged def system. Poured this in and cleared my code.

Quality product as expected

I thought it was going to be “snake oil” but the proof is undeniable. Truck idles, acellerstes and generally runs better. Have repurchased more.

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.

It is good

Superbe produit performant ! Je le recommande !

Fantastic product to keep emission system clean and functioning properly. 280000 km and never a "check engine" light or problem. I only use this when really working my 6.7 Cummins pulling my camper over a long distance. Otherwise, I use Archoil's regular treatment with every fill up. I will continue to purchase.