Diesel Cetane Boost

AMSOIL Diesel Cetane Boost (ACB) raises the cetane number of diesel fuel up to seven points for maximum horsepower, increased fuel economy and easier starts in all diesel engines.

Executive Summary

Ok, there is no reason not to buy this product. Not meaning to sound cocky but after my own evaluation of this product as an independent dealer and dozens of truckers using it over the years, It’s something you need! After having doubt before their first purchase this one product brought them in cross country for a repeat order. Often larger containers such as the 5-gallon or the 6-pack of half-gallons (treats 3840 gallons for that case). Some comment on the noticeable power, some mention the mileage gains over prior products. All mention the changes were noticeable. We do have that new version in the green label which mixes this and the lubricant/cleaner all in one, but buying in this red label version does save over using it any other way.

Serious Performance Boost

Diesel Cetane BoostDiesel engines operate best on fuel with cetane values of 50 or higher. Most diesel fuel sold in North America has a cetane value of 40-45. Diesel Cetane Boost delivers confidence in your diesel’s performance. Its concentrated formula uses unique chemistry to target and eliminate specific performance issues, maximizing diesel power.

Improves Fuel Quality for Peak Performance

Fuel with a higher cetane number provides for a more complete burn, resulting in improved performance. By increasing cetane, Diesel Cetane Boost improves the ignition quality of diesel fuel, maximizing available power and improving starting. It also smooths idle and reduces smoke and emissions.

Printable data sheet for your boss, friend, subordinate or future reference.

Check Price or Buy

Call 800-579-0580 for competitive current price.
Or use the online preferred customer portal if you choose to order online.

Printable Product Data Sheet for Diesel Cetane Boost.

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Diesel Cetane Boost is recommended for use in all types of heavy- and light-duty, on-and off-road and marine diesel engines. Best performance is achieved when used with every tank of fuel. Excellent for use with ultra-low-sulfur diesel fuel (ULSD). Compatible with biodiesel and all types of exhaust emission systems, including diesel particulate filters (DPFs). Follow the chart below. Add before filling tank. Excellent for use with AMSOIL Diesel Injector Clean and AMSOIL Diesel Cold Flow.

  • Increases cetane up to 7 points
  • Delivers maximum horsepower
  • Increases fuel economy
  • Improves startability
  • Smooths idle
  • Reduces smoke & emissions
  • Safe for use in all diesel fuels, including biodiesel
  • Alcohol-free

More product detail in this video on the All In One (Contains the Cetane too)


Insight from our customers

Diesel engines are designed for a cetane of 50 as mentioned above.. We’ve had customers fill up in South Dakota then on the next tank buy fuel in Wyoming and in the case of a 7.3 Ford Powerstroke see an improvement of 100 MPG!! That’s because from one state or station to the next the cetane can vary that much. Generally a 3 to 5 point improvement makes a major difference. This is one of the best cost per value products AMSOIL offers. Buy in the case or the half gallon to save even more.

One 16 ounce bottle treats up to 160 gallons of fuel. Only pennies to enhance power and fuel economy!

Call us at 800-579-0580 for the rock bottom price on this and other AMSOIL products. Synthetic Warehouse is the only name you need to know!


AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.



By  STEVE,  a  Verified Buyer  from  INDIO, CA  on  December 19, 2018
Bottom Line
Yes, I would recommend this to a friend if I had any.


I use Diesel Cetane Boost in every tank of fuel

By  GM Prof,  a  Verified Buyer  from  Ontario  on  October 27, 2018
Let me tell you something. Although Diesel Cetane Boost adds to my overall fuel costs, the added cost pays for itself in increased fuel mileage. Without the additive, my fuel costs are definitely higher. I also get increased power. So its a no brainer! better fuel mileage and more power for less money.
Bottom Line – It’s really free money so yes, I would buy again.

Cetane Booster

By  Jacob,  a  Verified Buyer  from  Alaska  on  October 22, 2018
A diesel mechanic told me that I wasn’t burning all of my fuel due to the lower cetane in standard fuel and that I needed a cetane booster. I now get a little better MPG and even a little better response from the throttle.

Would absolutely buy this product again!

Great stuff! I recommend it to everyone I know! Always noticed 2 to 3 mpg gain at every fill up. Great all-around throttle response, even when towing and plowing!

Cetane Boost!

If you want results you need to be consistent in using the product. I like the fact that Cetane Boost is also cleaning injectors = you are killing two birds w/ one stone!

Great product just bring the bomber up to 42 or 43 u r good

I put about 3 oz per 25 gal fill up. Ensures easier starts and better power. Diesel fuel is made like regular gas meeting minimum requirements with a Cetane number of 40. In comparison like the same power as 86 octane in Gasoline. Simply minimal.

More power

Used this on a trip pulling a fifth wheel didn’t bring enough for the trip noticed less power without it, won’t pull without it.

Diesel Vehicle support

I bought my 2012 Ford F350 used with 80,000 miles and this is the first Diesel vehicle I have personally purchased. However it is not my only experience with Diesel trucks. For 20 years I used diesel trucks Light and Medium Duty as part of my job with the Federal Department of Justice communications division. The vehicles that we were able to personally service due to them being on remote work sites we were able to make last much longer, and they were far more dependable. I believe this was because we only used Amsoil fluids in them. Yes all the various products that Amsoil manufactures for them. We were even able to make the inadequate Ford 6.4 turbo diesel last in 3 vehicles when we found out the biggest problem with them was that the coolant degrading led to turbo charger and major engine failure the majority of the time. When comparing the available coolant products I found that Amsoil had developed a specific formula for diesel powered vehicles we purchased it. It extended the turbo life and prevented the documented damage due to coolant deterioration. Your automatic transmission fluid was the same as well, I believe it extends the life of the transmission as a result of it specific engineered formula. I only use the signature series products as I use my trucks to do a significant amount of towing and hauling. I have utility, and stock trailers, as well as a large 5th wheel RV that is towed frequently with my current 2012 Ford. I also find the long life of the oil filters are a great asset as well. I know using Amsoil products have increased the life of the vehicles I have used in the past and am confident that it is going to increase the life of the one that I now own. Also I now have converted all my other gas powered vehicles to Amsoil products as well and I am very happy with that performance as well.

Do you drive a Ford?

Ford recommends No.1 diesel (47 Cetane) for their diesel lineup. That fuel is not available in most southern states and considerably more expensive where it can be found. Bio-diesel is showing up more often, sometimes as your only choice for fuel. My F250 with the 6.4 liter diesel suffers both in performance and economy burning 40 Cetane or bio-diesel. I’ve used off-the-shelf Cetane boosts with moderate success, but since using Amsoil Cetane Boost, my engine run smoother, quieter, and delivers a near 20% increase in fuel economy. To date (and miles), I have not suffered the fuel delivery woes so many other Ford diesel owners have suffered. Is it due to utilizing Amsoil products? Most likely.