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Diesel Performance Kits

The full Archoil effect at the best value

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

Best Value. Best results.

Regular use of AR9100 Friction Modifier, AR6500 Diesel Treatment and AR6400-D Diesel Fuel System Cleaner will help protect your engine and fuel system and also boost performance. We recommend using AR9100 at every oil change, AR6400-D every 5,000 miles and AR6500 in every tank of fuel.

> Ultimate Diesel Kit

The Ultimate Diesel Kit includes three Archoil best-sellers at a huge discount and provides the best results for your engine. Upgrade your oil with AR9100, rapidly restore your diesel fuel system with AR6400-D and get a boost at every fill-up with AR6500 Diesel Treatment. A 33 oz bottle of AR6500 is included with the Ultimate Diesel Kit, treating up to 330 gallons of diesel.

★ ★ ★ ★ ★

"Since I started using Archoil products on my 2005 Ford 6.0 diesel I am pleased to report that my engine starts easier even on the coldest mornings, it runs quieter, the turbo responds perfectly and my fuel mileage has improved." - Frank R, NY

> Diesel Starter Kit 

AR6400-D rapidly restores the diesel fuel system, removing heavy soot and carbon build-up from the key components - injectors, turbos and DPFs. AR6400-D should be used every 5,000 miles or as required.

For the best results, use AR6500 at every fill-up between AR6400-D treatments. AR6500 has been formulated to address issues with modern diesel fuels by cleaning, lubricating and protecting your fuel system while also incorporating Archoil's combustion modifier technology and a cetane boost to increase power and response. The 16.7 oz bottle included in the Diesel Starter Kit treats up to 165 gallons.

★ ★ ★ ★ ★

"I have been using AR6500 Diesel Treatment for just over four tanks full over the last month. My truck seems to be running smoother, regen cycles have been extended to around 270 miles and my MPG has increased by about 1 MPG (10% increase)." - Danny S, Colorado

> AR9100 + AR6400-D 

Improve performance and enhance your driving experience by adding AR9100 to your next oil change and Archoil's one-tank treatment AR6400-D to your fuel. AR9100 Friction Modifier's benefits include increased power and response, anti-wear and anti-corrosion protection and injector stiction issues eliminated in 6.0L & 7.3L Power Strokes.

★ ★ ★ ★ ★

"My 1995 F350 was starting very rough and smoking for a while before clearing up. I have only run 1,000 miles with both additives in but I noticed a significant improvement in cold weather starting after a few hundred miles. The truck starts easier, doesn’t sound/feel like it’s missing and barely smokes at all." - M. Wells (1995 F350)

> AR9100 Two Pack 

AR9100 oil additive is suitable for all gas and diesel engines, providing extreme pressure protection, reduced friction, engine deposit reduction and extended oil drain intervals. AR9100 forms a solid boundary lubricating film which protects engines and extends component life.

AR9100 eliminates hard/cold start issues caused by HEUI injector misfires in 6.0L & 7.3L Power Strokes.

★ ★ ★ ★ ★

"I was skeptical having been mostly disappointed over the years by almost every additive. After adding this to my 2006 Duramax work van I noticed a much smoother operating engine and all my subsequent morning starts are instantaneous. I will be using in all my vehicles from now on." - Chad L, Oregon

Find out more

Click the links below to find out more about each of the products featured in our Performance Kits:

AR9100 Friction Modifier (for Power Stroke application click here)

AR6400-D Diesel Fuel System Cleaner

AR6500 Everyday Diesel Treatment

Archoil Performance Kits

Best value. Best results.

Shop Now

Customer Reviews

Based on 306 reviews
Jack B. (White Pine, TN, US)
Made a Believer Outta Me!

I ordered the ultimate diesel kit that had all three products. This stuff works great in my 02 7.3 F250 with 377k on the clock. Within about a 20 minute drive I noticed it was running smoother. Easier starting too. I'm a fuel mileage miser and it has increased my hwy mileage from 15.5 to 18.3 MPG. In the past I have used both Diesel Kleen products and also Lucas fuel treatment. Diesel Kleen actually reduced my mileage, Lucas no change. I'm a believer and will be a repeat buyer.

Mike H. (Henryville, IN, US)
Archoil user since 2017.

Bought my Ram 2500 4x4 6.7L Cummins in 2017 and have been using the Archoil friction modifier at every oil change. Every time, the oil is clean,black, and still looks good. I also use the friction modifier in my 2012 Hemi Challenger, eliminating the infamous Hemi Tick. It works, unlike some other well known brands.

Mike U. (Lakeland, FL, US)
Archoil is the best

When I sent my first oil sample to be analyzed after using Archoil, I forgot to list the additive on the information sheet. My results were greatly improved over past samples. The technician noted in the summary "you must have added Archoil even though it was not noted on the sample sheet."
I have noticed quicker starts and 1.7 mpg increase since using Archoil products. I drive a Super Duty with a 6.7 diesel and I add AR9100 at every 7500-mile oil change along with AR6400-D in the fuel tank and AR6500 at every fuel fill-up. All three products are included in a diesel performance kit.
Since I had such great results, I began using AR9100, AR6400-G and AR6200 in my 2002 GMC and my wife's 2011 Ford Edge.

James B. (Little Rock, AR, US)
Good product/ 2013 F-250 6.7 4x4

Good product. I've noticed an average of 2.4 mpg gain on my fuel consumption. And this is the miles driven vs gallon used. Truck starts more quickly and a little more ump in it. Recommend it!

Justus (Houston, TX, US)
AR6500 works! Dodge 3500 5.9L Common Rail, Fass fuel system, banks RamAir intake, bigger injectors

I’m a diesel mechanic and I’m always on the look out for quality additives that will improve performance and longevity of my equipment.
So, I ordered the ultimate diesel kit to test all three products and man what a difference!
I tested all three products on my 2004.5 Dodge 3500 with notable results, most of all from the AR6500 fuel treatment. I’ve run it on the power boost ratio on every tank, while tweaking my tuner settings to find the best mileage to power ratio. The increase in cetane points has allowed me to increase the timing to the most advanced setting in the tuner and gain 3-5 MPG depending on how hard I drive it.
The engine loves it! Better throttle response, smoother idle and more power!
I’ve since ordered two more ultimate diesel just to further test the friction modifier and full fuel system cleaner