

⛽ Clean fuel, cleaner ride—don’t let your diesel fall behind!
The AR6400-D Diesel Fuel System Cleaner is a high-performance additive designed to rapidly clean diesel injectors, turbos, DPFs, and EGR systems. It restores engine performance, improves fuel economy, and ensures smoother idling. Each 12 oz bottle treats up to 40 gallons of diesel fuel, making it ideal for use every 5,000 miles across all diesel systems. Highly rated with 4.7 stars from over 2,500 reviews, it’s a trusted solution for both individual drivers and fleet operators aiming to prevent costly maintenance and maximize diesel engine longevity.










| Best Sellers Rank | #764 in Automotive ( See Top 100 in Automotive ) #6 in Diesel Additives |
| Customer Reviews | 4.7 out of 5 stars 2,544 Reviews |
C**R
Works on gas turbo automobiles.
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.
K**K
Great product use as directed
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
S**O
This stuff Works!
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.
A**E
Best ever
Cleaned my injectors within 100 miles
T**7
Good product, premium pricetag
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.
D**T
Love this product
Great product throttle response was superb 👏
M**Z
Works fantastic
This stuff works great. I had a check engine light for clogged def system. Poured this in and cleared my code.
D**R
Quality product as expected
Quality product as expected
Trustpilot
1 week ago
5 days ago