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⚙️ Power Up Your Diesel Game — Efficiency Meets Protection!
Archoil AR6500 Diesel Treatment Two Pack delivers a powerful cetane boost and advanced combustion modifiers to improve diesel engine power, throttle response, and fuel economy by up to 10%. Designed for all diesel vehicles, it cleans and protects fuel systems including HPCR injectors, reduces DPF regeneration frequency, and disperses water to prevent corrosion. Each pack treats up to 800 gallons, making it an essential, cost-effective upgrade for professional-grade diesel maintenance.







| ASIN | B08QSLLNM8 |
| Best Sellers Rank | #167,305 in Automotive ( See Top 100 in Automotive ) #439 in Oil & Fluid Additives |
| Brand Name | Archoil |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,893) |
| Liquid Volume | 80 Fluid Ounces |
| Manufacturer | Archoil |
| Manufacturer Part Number | AR6500-TP |
| UPC | 608819243931 |
| Unit Count | 80.0 Fluid Ounces |
R**Y
If you own a diesel that has a CP4 fuel pump, this helps keep it lubricated! It also keeps your Turbo and EGR Clean. I use it every fill up
R**Y
Helps with mpg!
F**W
Good product. Your diesel will love it. Increased my mileage slightly and cleans your system.
D**Y
This seems to work really well. Just started using this especially for this winter season. Seems to improve mileage.
B**B
I suspect my Audi 3.0 TDI had a clogged cat some 5 years after a DPF delete back in 2019. MPG was down and it felt like it was also down on power. Sometimes the "Italian Tune-up" (high rev driving) would briefly help by blowing a lot of crap out the back, but it would go back to reduced after a day or two. I had been using the Hotshots Every Day in each fill-up, which may have slowed this issue down but it still happened. I also tried Opti-Lube XPD for a few months. Not much, if any, improvement. I do suspect they helped improve cetane values, but idk what else. If I had a good run, I was getting ~560 miles per tank. After some YouTube videos, I decided to try Archoil. I didn't notice anything for a couple fill-ups, but after about 1-1.5 months, I started to notice some slight improvements in mileage to/from work and some other trips. It was getting hard to hit 30 mpg on the way to work, whereas I started hitting 31-32, even with significant traffic. After 2 months, there has been a definite improvement. I'm currently seeing 33+ mpg on the way to work (same conditions as before) and reaching closer to the 38 mpg EPA advertised on my way home. I've also hit 42 mpg coming home from a friends' house, whereas before it was struggling to hit 39. Power feels like it has returned to expected levels compared to the previous treatments. My range is now reporting >600 miles per tank, even dealing with some stop and go traffic. For the results, price, and ease of applying into the tank, I highly recommend using it and I intend to continue using this from hereon out.
Trustpilot
1 month ago
1 month ago