The fuel system costs way too much to replace. This is worth the peace of mind.

I have always used a cetane boost. Amsoil makes a superior product. You need a good cetane additive to ensure your injectors get the lubrication they need. For an older diesel it’s a must

Better fuel mileage and power gain for my 7.3 diesel. Now that our leaders sell us the low grade fuels. I'm glad amsoil is still in the industry for the customers benefit. True performance company.

truck seems to run better when used

Just started using Cetane Boost, seems to give better fuel mileage.

I bought a new Silverado w/a 3.0 Duramax a few months ago. Being an advise Amsoil user I decided to purchase this product and try it. I definitely noticed a mileage increase and the engine seems a little stronger. It’s , as usual, another good Amsoil product!

I use this product and I have noticed a difference in fuel mileage and performance. It's worth the money.

Improved the mileage in our 36' class A motor home by a half mile per gallon.

keeps ejectors clean and running smoother with better fuel mileage.

Before using the Cetane Boost I liked the power my rig was producing pulling our 32 foot RV. After the 2nd fill-up using it I could really see the difference especially when pulling hills. I now always have an extra 1/2 gallon on hand.

I have never gotten more than fourteen miles per gallon in my 2012 GMC Duramax Diesel. I put six ounces of booster in my tank and fifteen gallons of fuel. Fifteen point four miles per gallon. City driving. Only difference was the booster. That's twenty percent increase.

I buy it by the case and add with every fill up. Starts right up when cold, overall improved performance, notable difference. Great product that actually works!

I use this every other tank of fuel and my mileage is great and the power it helps add is great

Switched from the power services diesel clean To this product truck runs smoother and has more power highly recommend him goes in every time

Notice more power in every day duramax use . Also use in my kubota tractor. Frequency of regen is noticeably less. Kubota recommends 50 cetane this product gets pump diesel alot closer to cetane rating i should have. Will keep using thanks

Made my Cummins motor run smoothly and start easy

Great product gives an extra boost to my 04 Cummins

It sucks that we have to buy this type of stuff because of regulations. Didn’t think twice about where to go for an engendered quality product though.

Have 2004 Duramax , Amsoil product makes the injection system run better and quieter , so you know the product works , with less sulfur in today fuels , you need this protection