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 am not sure what one worked so well. The oil treatment, the fuel additive, or the fuel sytstem cleaner. I tell you what one of them sure did! City and Hwy combined MPG increased from 1 1/2 to 3 MPG. Black smoke when I get into it is gone. It is worth the money!!
Just used the cleaner and 1 day in and I notice a big difference. I am usually skeptical of additives but this one so far is proving to be worthy.
Immediately noticed a difference in throttle response and overall performance, and only getting better!!! Never used anything other than Lucas and Hotshot’s until now and if it continues this way,Archoil will be what I use period
Added the kit I ordered (surprised at how fast it came) to a full tank of fuel as directed and I've only driven about 100 miles. The truck runs smoother, seems quieter, and definitely starts on cold mornings better!!! A good investment!!!