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

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.

Keeps fuel system clean, improves power and mileage.

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.

This fuel oil works great, actually cools the engine from good lubrication.

It’s a good product

I've only ran two tanks of gas on my truck with zero prior treatments at 178k miles. Gas mileage has increased a little but boy my truck runs way better. Spools up faster and pulls harder. 2500 chevy duramax. Definitely recommend trying this stuff

My feels like it has better power, fuel consumption and overall just runs like a beast

Our RV (Cummins diesel) was always going into regen, it was very annoying. I saw this product advertised and purchased. What a great surprise! It not only limited so many regens but both power and mileage improved.