Archoil AR6500 Diesel Treatment 40 Ounces - Treats 400 Gallons - Additive for All Diesel Vehicles

From what I had seen it was a great product but it was the worst thing I’ve bought in a long time. My fuel mileage went down drastically and my motor started to have more of a vibration to it idling. I used a bottle and a half before I decided it was trash. So now I’m just stuck with some overpriced shelf clutter. Read more

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. Read more

I diligently used this product as instructed. As suspected any additive other than a cetane booster will have no MPG effect and that minimal only. It does not create a noticeable increase in performance or reduce "Regens." As a side note when I commented on their Facebook ad that I didn't see the improvements promised I was told I could get a total refund, so I inquired how to go about that...my posts were deleted. Read more

Works well in our diesel pickup Read more

Maybe there is such a thing as a mechanic in a can. I bought a Dodge RAM 2500 5.9 Cummins. It has 218k on it. I live off grid and drive 5.5 miles of slow going, country gravel road to get to my place. I felt the stutter in the engine going around curves and up hills at low speed and RPM. At this time I averaged 15.5 MPG on the factory digital display. I heard about this stuff from an old time that started using it in his old 99 RAM. I took his advice, and started using the full 3 part treatment . I've been consistently using all 3 products for more than a year now. I do the boost dose, 2oz per 10 gallons of diesel. My fuel economy has increased to average 17.4 MPG reading, there is absolutely no stutter at any speed or RPM. I'm NOT a mechanic, but I know a better running truck when I see it and drive it. I've got 248K now and this truck runs far better than it did the day I bought it thanks to a little TLC and the Archoil line. Read more

I have a ‘21 GMC Canyon Duramax with 48,k miles. After using the whole bottle, I can say that my average fuel efficiency hasn’t increased even 1 mpg, this hasn’t reduced regens at all (regens have always been approx 400 miles), and I there hasn’t been any noticeable “restoration of power”. Now, my truck is fairly new, and I’m not saying that it wouldn’t be beneficial to an older truck, but in my experience this did nothing but cost me money. I use only Blu Def Platinum, which probably has the same cleaning effect on the DPF as this product, and I only use Top Tier diesel which contains additives which also clean the engine and exhaust system. On a properly maintained vehicle, this product just seems like a waste of money. Read more

This stuff is junk. I used it two fill ups and now having injectors cutting out, a VGT issue, and now truck is making oil aka. Fuel getting into the crank case. Thank you so much Archoil I am having to spend thousands fixing issues that I did not have before I started using your product. Read more

Used every time I refuel my diesel trucks. Keeps my fuel system lubricated. Read more