Archoil Ultimate Diesel Kit - AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40oz) + AR6400-D Diesel Fuel System Cleaner (12oz)

Unbelievably it Works exactly as described. Better gas mileage, better acceleration, and faster pedal response. So far 1100 miles since starting using product as directed my MPG have gone from 11.8 to 14.2 which is a 22% increase.

The best diesel additive on the market. I've been using this for 10 years on my 2005 f250. It runs awesome. Better fuel mileage is a big plus!

I’ve used a few fuel products in my 2013 F-550 work truck. This is one that works well. About 1.5 mpg bump, better acceleration, and less dog cycling. That’s pretty good for a truck averaging 17,000#.

This product is outstanding. Used as directed, put it in my 2006 6.0 power stroke and could not believe the difference it made. Removed the cold starts and greatly improved pulling my 16,000 pound fifth wheel. The power was so much better, and just as important it made the engine run cooler.

My 7.3 smoked on cold start-up 20° F or lower. Now easier starting, cleaner start ups and I'm happy.

I have used Archoil products since learning about them 3 years ago. I noticed an immediate difference in the way my truck ran and my MPG. The only ongoing issue I have is the bottle, which leaks from the moment you break the seal. The odor of the system cleaner and diesel treatment is overbearing, so you have to stick it in the bed of your truck between uses. The first time it falls over, it leaks. I used half the system cleaner in my truck today and put the rest in my swingcase. As soon as I opened my door I smelled it. It fell over and leaked all everywhere. Had to throw away my last diesel treatment due to water getting in the bottle after it rained. Can buy cheap bottles of cleaning products from Walmart and leave them in the bed and never have an issue, not sure why this can't be figured out.

Was recommended to me years ago for my Ford 6 l diesel engine. I use the oil and fuel conditioners. Keeps my engine clean and running smoothly. The fuel conditioner also increases the cetane rating for better performance. It's a great value for the money due to the lack of repairs that I have to suffer for not using it. Just as simple and easy to use is adding the fuel conditioner at every fill up and the oil conditioner at every oil change. I've also noticed somewhat of a noise reduction in the engine since it's use. For Ford 6 l diesel engine users I would highly recommend this product and for anyone else looking to protect their diesel engine and its performance

It works great! I definitely see the difference since I’ve started using it. I buy the kit with every oil change.