I don't have empirical evidence to back up the AMSOIL Diesel Conditioner from myself directly but I trust and depend on AMSOIL, their data, products and product application information so when I needed a diesel conditioner I automatically go to AMSOIL.

I back all Amsoil products in my Diesel, RZR, Harley Davidson, and SUV. Back a company that's proven

The plastic bottle neck is not long enough for the fluid to enter the tank for a 2016 Ram 2500. Contacted Amsoil and explain the issue of the fluid will spill out - which it did and wasted my money. They responded stating they would look into it and never got a response back.

I haven't used it yet but I know Amsoil stands by their products.

I use this stuff all year long, use 16 ozs. each time I fill up. The only fuel treatment I have ever used in the Dodge 2500 4x4 with a Cummins 5.9, never had a fuel issue yet. Had to replace injectors not long after purchase, don't know if previous owner used treatment or not. Great product, hoping it will add to life of new injectors, get quick starts even in very cold parts of winter......

Quick shipping. Works great.

I run around 10k miles a month, I use this product in every tank. It keeps my 2011 Dodge Cummins running clean and strong!!

I can tell a difference from using this to not using this I travel alot for work and on my way home I put a bottle in and got 349 miles to a half a tank usually I get about 270 miles to a half a tank. I most definitely thinks it helps alot

Great all in 1 that is easy to use and reasonably priced!

Great product!

I’ve tried all them all and the Amsoil Diesel All-in-one is the best daily diesel additive on the market, today!

This is a great product for all seasons. I use it in all five of my diesel motors…Kubota, Bobcat, Ford and I’ve never had any fuel issue problem.

Keeps my 6.7 running like a charm

This product has kept my Kioti Tractor running great year round. I use Signature Series oil for the motor and this for Diesel ,both of which have kept my Kioti running like new .

I bought a 2000 F350 7.3 with over 300,000 miles over a year ago. I couldn't get more than 9.5 mpg, but since I've been adding "Amsoil Diesel All In One" I've improved the MPG on the old truck to 13.5-14 MPG.

Awesome product. On a trip we stopped at a regular gas up that has junkie gas. Added the Amsoil and not only did it give me back my power but also better gas mileage.

I bought a Kubota diesel tractor. It's the first time I've owned a diesel, so I have a learning curve. I was nervous about it running in the winter, since it will be my main method for blowing snow. I've been a loyal Amsoil customer for years and I had remembered seeing diesel related products in the catalogs. I did quiet a bit of homework comparing other diesel related products. In the end it was a no brainer for 1st time diesel owner to use the Amsoil All-In-One. It took care of everything I was concerned about with the upcoming winter/cold. Thank you Amsoil for providing the best products in the market!

This product has never failed to provide protections during our severe winter temps here in Montana. I have never had a diesel fuel problem while using this. Also, there is a distinct better performance on my diesel when using this. Better mpg and more power.

I use this in every fill up. With the crappy diesel in the US this is one of the ways to extend the life of your injectors. I would recommend this product.

Just started using this year with my LML duramax. I trust Amsoil to be above & beyond with their products.