BEST VALUE. BEST RESULTS.
The must-have kit for diesel owners. Restore and maximize your performance with this best-seller.
Upgrade your oil with AR9100 to protect your engine and increase power and response. Revive your fuel system with AR6400-D and boost performance at every fill-up with AR6500.
"My engine is noticeably quieter and a lot more responsive. It runs better now than it did in 2006 when I bought it!"
Fully restore and maintain your vehicle's fuel system with this kit.
AR6400-D delivers a rapid deep clean to remove carbon build-up from injectors and key fuel system components. AR6500 boosts cetane, improves lubricity and keeps the fuel system clean to increase MPG and prevent premature failure.
"I had some turbo lag - gone. Engine had rough idle at times - gone. Fuel economy has increased between 1 and 1.5 MPG."
"As a former mechanic I never believed in additives but this is my 3rd purchase of this product and used on 3 different vehicles with great results. On my BMW X5 it made the idle smooth and the MPG up by 2. On my LML increased the regeneration interval from 300 to 600 miles."AR6400-D Diesel Fuel System Cleaner
"The engine noise became noticeably quieter after about 20 to 30 miles. Before Archoil this truck was lucky to get 14 MPG on the highway. I drove back from New Mexico with a slight tailwind and AR6500. One leg I got 20 MPG!! This truck in 60,000 miles has NEVER gotten 20 MPG before!"AR6500 Diesel Treatment
"I use it in all my diesel engines. I was amazed when I pulled the valve covers. It was showroom clean - no sludge, no blowby residue, nothing. Could easily read the serial numbers on the injectors. As far as stiction goes, I don't have any with my Power Stroke and it runs smooth and fires right up."AR9100 Friction Modifier
I believe that Archoil seems to be helping with my 7.3l powerstroke, it seems to be running smoother, it has only been the first treatment so far and time will tell. As for the boost in cetane I have not idea since I run a tunner on my truck. But as long as it does clean the internal parts as it is supposed to do I will continue to buy it. The Archoil customer service did a great job, we had lots of issues with my order because the USPS destroyed one of my bottles and half of it had leaked out in my mailbox and Archoil sent me another bottle on their dime and told me to salvage any i can from the old one and keep it to use. Too bad shipping companies don't take care of their customers like Archoil did.A++
My 15 dodge 6.7 was smoking at start up and it was obnoxious. I used the cleaner on a trip from Montana to Minnesota and also conditioned every tank . It quit smoking completely and runs way smoother. I’m completely sold on this product.
This is the best product I have ever used that worked as advertised. I don't fill up without it!!
I have a 2000 powerstroke I use both fuel additive and the oil additive every time . Before using it I would get 15 miles per gal. With all three I get an average of 19 1/2 to 20 miles . Best stuff out there I love it