Customer Ratings & Reviews

The AMSOIL Diesel Injector Clean + Cetane Boost is amazing. It makes my 2021 RAM EcoDiesel purr like a kitten.

I have tried a lot of different products and this works the best for my 2021 Ram 2500

I've been putting this in my old diesel tractor and it likes a responds well to it. I recommend.

Awesome product 🎉

I used to use diesel clean but this stuff works a lot better

Like this product, truck starts much better and seems to run smoother.

With ULSD fuel not having the lubricity needed by the fuel pump, this adds much needed lubrication. It also helps to clean everything and improve combustion. I have seen about a 5% improvement in economy.

Used this product in my 2016 Ram 1500 ecodiesel while on vacation. Truck ran great, averaged 28 MPG highway!

I have been using this for a little over 2 years now as Maintenance and it works quite well. The injectors are quieter and with a slight inprovement in mileage, the cetane boost gives a bit more power with easy starts.

I tend to be skeptical with products such as this but I must say I was pleasantly surprised with the results. While it is difficult to determine what exactly is happening inside the engine I have data that confirms an increase in MPG of about 8%, just as advertised. I plan to continue to use this product.

It has made a noticeable difference in the mileage of my 6.0 diesel

I use this additive in my 2016 Ram ecodiesel. It is a great value and I've had no issues with injectors.

I use in every other tank or every tank on long trips. Haven't had any issues and the truck runs great and smooth!

It seemed to improve the performance in my 1997 Ford F-350, 7.3 power stroke. If been using the injector cleaner with no issues. I Would like to see the boost/cleaner sold in OZ marked containers for more controlled application

My 2008 RAM has just over 224,000 miles - it's had an AMZOIL bypass/oil since it has 11k miles. Decided to try this cetane booster/injector cleaner out. Filled tank up, poured 1/3 of the container's fluid in, and parked it. In the morning not only did it fire up instantly, but within first 3 miles there was a significant improvement on throttle response and power. I will "shock" the fliel system after another two fill ups just to keep everything clean and high functioning - very impressed with the product and quick, noticable results.

This stuff is the best!

Great Product!! My truck runs better and fuel burns cleaner. The cetane booster helps save using as much diesel fluid.

With the cost of modern diesel injectors, adding a bottle of this every month or so is a no-brainer. It's easy to put your trust into anything Amsoil puts their name on.

gave 4 because just started to use. Seems really good for now and if it is like their other products I won't be disappointed.

I gave this a try for my 1997 Ford F350 Powerstroke. Well I can tell you now it's like running on steroids. My truck acted more responsive and had quicker acceleration than before. I have tried many types in the past and only Stanadyne or redline came close. Definitely recommend this product. As for the injector cleaning? I think it's working bu but all I can say is the truck runs much better now and they have the original injectors in there. 240k miles. Definitely try it out!