Archoil Ultimate Diesel Kit - AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40oz) + AR6400-D Diesel Fuel System Cleaner (12oz)

Archoil products have reduced my regen cycles and the cycle time of the regen cycle, dramatically. I've tried other leading additives and they do not work, even for fuel mileage. I am using the daily fuel additive and the oil additive during changes. I average a 1000 to 1500 miles weekly and am very pleased with the results.

As most people have, I've used a few different fuel system products in the past and I've never had a "this stuff really works" noticeable difference. LLY with 267K miles on it. Couple upgrades but stock turbo. I started driving the truck less(not good, I know) and the truck started throwing VPS/solenoid codes. No vane sweep on startup, low power, and sluggish/stumbling spooling. Replaced the VPS, learned, etc, etc. but no luck. Read up on Archoil and decided to try it before ordering a new turbo. Ran one bottle of the fuel system cleaner through a full tank. By the time that tank was gone, I had already noticed a much smoother idle, quicker spooling, and more carbon burn off than usual. A week or so later the check engine light went off. I checked and no codes stored for the VPS circuit. I still believe the unison ring is seized/rusted to an extent but that's to be expected with a 267k turbo. Yes, there are lots of fuel system cleaners that will handle rails and injectors but this is the only product I've personally used that seems to make it to the exhaust side/turbo to tackle the build up. I have since ordered the cleaner and treatment kit and will remain to use it. I know a new turbo is in the future but I will continue to run this product with that too.

I'm a Campos at a national Forest so I was doing a lot of idling and driving real slow around the campground and I was having a lot of regions and perform service and all kinds of codes and I put your cleaner in and I'm using your fuel additive and no problems everything cleaned. I haven't had any codes. I haven't had any performance service ever since I use it I believe in I believe it is the best.

This is my first time using the Archoil products. I have used other additives in the past. And I truly figured that they were all about the same. My mistake, after adding just the Archoil fuel system cleaner I could hear the difference in the engine. I am now on my second full tank with the diesel treatment. So far so good. Should be able to see the fuel milage increase on this tank. I will not be switching back to the old product. Looking forward to adding the friction modifier next.

I have used different kinds of additive with no noticable difference. Archoil is great stuff. My 2022 Ram is loving this stuff. Regens are happening 24 hours now or 900 to 1300 miles up from around 400 miles prior with same driving conditions. Can't complain about the fuel mileage either. Add it at every fill up.

I initially ordered you kit to try to avoid replacing the DPF on my 2018 F250. I felt the kit cost was worth it if it helped the truck even a little. The check engine light was on for the soot sensor and after 2 forced regens the dpf was still at 20%. I added the cleaner as directed. Within 3 days the check engine light went off and I felt the increased performance of the engine. The fuel mileage increased into the low 20's on a factory stock 6.7 diesel. My highway mileage is at 22-24 mpgs & in town at 18-19. I'm impressed and will continue using Archoil products. By the way I had my mechanic who did the forced regens recheck the truck after 3 weeks, and the DPF was at 1% and no longer needs to be forced to regen. $90 of products saved me from spending $3500 on a delete & tune!

In my opinion I think this is probably the best adative that money can buy if you own a ford power stroke . I own a 2003 f250 with a 7.3 with just under 200000 miles and I can truly say that the friction modifier and diesel treat do a good job at smoothing the engine down and getting a performance pickup in my fuel mileage overall I am satisfied and will continue to use Archoil products at every oil change.

Thanks...I never do reviews but Arch Oil is worth it. F250 Desiel 300,500 miles purs. Bulldozer 3 ...5 more assorted trucks and cars. Generator 3...We feed it like milk to a baby. Anything that moves...10 year customer.

I drive a 2019 Ram 1500 eco diesel. I get 28.6 MPG as it is. The first time that I used it my truck seems to be running smoother, and my mileage has improved to 30.8 MPG. I will be changing my oil this weekend and am curious how using the friction modifier works as well.

Ran Fuel System Cleaner Feb 2025, Then 2 bottles of AR6500. Ran for 2 month without any treatment. Ran Fuel System Cleaner June 2025 and 1/2 way through a bottle of AR6500 now. Maybe a slight increase in mileage but nothing significant. Can't say that there is any noticeable increase in performance.