Diesel Performance Kits
Diesel Performance Kits
Diesel Performance Kits
Diesel Performance Kits

Diesel Performance Kits

Regular price $114.85 Sale price$89.90 Save $24.95
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The Ultimate Diesel Kit includes:
  • Increase power and response
  • Anti-wear, extreme pressure and anti-corrosion protection
  • Protect engine during cold starts
  • Clean and prevent sludge/varnish deposits
  • Extend oil drain intervals
  • Rapidly clean injector tips and IDIDs
  • Remove carbon and restore turbo function
  • Eliminate DPF build-up and reduce regens
  • Restore power and performance
  • Boost cetane up to 8 points
  • Increase fuel economy (MPG)
  • Lubricate and protect the fuel system
  • Maintain injectors, turbo and DPF
  • Extend component life



Revive, restore and maximize your vehicle's performance with an Archoil Diesel Performance Kit

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."

AR9100 + AR6500

Improve engine performance, eliminate stiction and boost your fuel system at every fill-up with this combo. AR6500 ensures fuel quality, increases lubricity, improves MPG and cleans the fuel system.

Add AR9100 at an oil change and treat up to 400 gallons of diesel with AR6500.

"2006 6.0 Powerstroke with 145,000 miles. Sluggish when cold and stuttered until it warmed up. After one round trip to work (40 miles) the truck runs flawlessly."

AR9100 + AR6400-D

Add AR9100 to your oil and AR6400-D to a tank of fuel and feel the benefit for the next 5,000+ miles. AR6400-D removes heavy carbon deposits to restore power and performance.

This kit is perfect for those looking for easy but effective maintenance.

"Been using this combo for the past year and I must say it has really woken the beast up! No more bucking or stiction and the MPG has gone up."

"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

Customer Reviews

Based on 390 reviews
Ryan H. (South Jordan, UT, US)
Combination is perfect for the 7.3 Powerstroke!

I've started running this combination of Archoil products in my 1995 Ford 7.3 Powerstroke, and it is about as noticeable of a difference as you will ever notice, wow! Amazing products!

Vic L. (Monroe, NC, US)
Great Product = Great Results

I've been using AR9100 Friction Modifier in my 6.0 for a few years now and have never had any stiction issues like I had before. I will continue to use it at every oil change! Also been using AR6500 Diesel Treatment, not as long as AR9100, but I've seen subtle increase in mpg's. I had been using Motorcraft Cetane Boost, but decided to switch to keep everything Archoil. Just ordered AR6400-D Diesel Fuel System Cleaner and will be using it on my next fillup. Overall, I am very satisfied with Archoil products and will continue to use them.

Daniel P. (Negaunee, MI, US)

Came recommended from forums and FB pages for the 6.0 motors. I purchased the whole kit and just changed the oil about 100 miles ago and added the friction modifier as well as a full tank of fuel with the fuel system cleaner. On my second tank I added the diesel treatment. Haven’t driven it long enough yet to see if there is any change in fuel mileage but it’s cold and winter here and it seems to start up and smoke a bit less now.

Truck is a 2004 with 95k miles

Travis C. (Mechanicsville, VA, US)
Very satisfied

I have a 05 6.0 143k , the friction modifier definitely works , no more rough cold starts . Very satisfied and will definitely be using it again .

Keith V. (Cleveland, OH, US)
Very Satisfied

I bought this kit for my 96 Ford 7.3 diesel with 365000 on it. it has been hard starting when it gets below 32 degrees for a long time
The unit would blow blue smoke on cold starts and run really rough till warm. I know the units could use a set of injectors and probably a rebuild someday. I am one to like to see how long the old unit runs with no major mechanical failure. After my kit arrived, I added the friction modifier and drove the unit 20 miles to fill up with fuel.
I added both the injector cleaner and fuel additive then topped off the tank. drove back home the 20 miles and noticed the unit ran smoother and seemed to have better throttle response. After several cold starts, I have noticed a big change in the way it starts and there is literally no blue haze at warm up. I even tried starting it at 0 degrees... no haze and unit came to life with no shutter( block heater was used for 1.5 hrs prior)
This product is not a cure all/ fix in a bottle solution to major engine issues... but defiantly and major tune up and a good maintenance product for my old 7.3 with a few miles on it
My son has ran Archoil friction modifier in his 7.3(236000 miles) for the last year and He has commented it has greatly improved his unit's performance and cold starts issues