I have a high mileage 5.9 cummins with some extra go go parts and with the oil additive it runs a little smoother and cleaner. Fuel additive also helped with my mpg.
Great products and will for ever use.
Very happy with AR6400D. Only diesel fuel treatment that I know of that has ester content. Esters can survive the heat of combustion and therefore can clean the diesel turbo system as well as exhaust after treatment systems. Even if one buys only quality diesel such as Chevron, Exxon/Mobil or Shell, the use of this product is essential for maintaining peak performance.
Have used AR6200 for several years, and have found a notable increase in fuel mileage gasoline and diesel. Have used this product with E85 rocket fuel and got the extreme performance that E85 will bring to a performance engine made to use E85, and did not suffer the substantial fuel mileage penalty that I expected. This product also works well in my Stihl chainsaw and leaf blower, it greatly reduces the smoke and spark plugs stay much cleaner.
I'm skeptical of mechanic in a bottle products. I can think of maybe 1 other product I've used in the past that did what it said it could do. But , AR9100 worked extremely well in my 2004 Ford Super-duty 6L diesel with 102000 miles at the time. Very rough starts when cold, several minutes before it could be driven and fuel economy was off. Admittedly better if plugged in overnight but its not driven in winter and never had to plug it in spring summer or fall except frost conditions. It seemed to run better right after this oil change with the AR9100 and much better cold start next day. The second day started like a new truck. The choice was between this and the other competing product in a lager container and I went with the Arch Oil partly because the various forums treated this product better and partly because I felt better using only 16oz of 'magic oil' . But I'm a believer, the mileage is noticeably better as well. I bought a 2 pack and I'm actually debating with myself weather or not to skip the additive next oil change to see if its needed every change or not but I'm definitely going to use this product from now on, given the cost of the filters and 15Qts oil the AR isn't really that much more of an expense. Just took a long trip and i do believe its paid for itself.
THIS IS THE BEST TURBO CLEANER I HAVE FOUND WORKS GREAT
IT NOTICES A DIFFRANCE IN MY TRUCK AFTER A 150 MILES MORE POWER
I WOULD BUY THIS AGAIN
I used this in my 2003 6.0 Powerstroke with about 210,00 miles and I have noticed the turbo has recovered a little quickness that had seemed lost. Little extra pep in the step, as it builds boost sooner and without having to be fully warmed up. A change for the better.
I use the AR6200 in every tank of fuel. I put this in and I really think the truck runs better. I need to change the fuel filter soon, so I will be interested in seeing how it runs with clean filters, but I am very happy with the product. Love the entire line of Archoil products.
I have an 2007 Duramax with 97000 miles and would keep getting a turbo vane sensor check engine light every now and then. I put half the bottle of archoil 6400 in a full tank of fuel 34 gallons a day later the light went out and has not been on since. I also bought the oil treatment and fuel additive but have not used them yet. Seems to have more power already , good stuff.
Had 3 injectors going out. I've got 2 back and the 3rd one is getting better every day. Hopefully it will come around. I've got about 200 miles on it now so hopefully more will improve the last injector.
Have been using in 2004 ,6.0 for many years, great mileage no stiction. quieter running. Never without.
Noticed a huge difference after this treatment. My truck is more responsive with less lag. She’s definitely got more pep in her step.
Worked very well to clean up a couple of old gas tanks from a couple of antique lawnmowers I have !! Super product like all of the archoil line !
I have a2003 Ford 6.0 F250 Crew Cab. 248,000 miles NO major engine repairs other than cam sensor, EGR hoses and a passenger side exhaust manifold. Original factory turbo, injectors. Bypass oil filter, Rotella T6 and Archoil every oil change (7500-8000 miles, Blackstone checked), uses less than 1 pint oil during that use.
Just tried AR6400D fuel system cleaner and saw results in less than 200 miles: smoother idle, more power on the interstate when passing and it even seems to start easier. I always use a fuel conditioner with every fill and never have fuel issues so I know that AR6400D gives positive results to get injectors and the turbo clean.