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Fuel Ox Complete Fuel Treatment and Combustion Catalyst - Additive for Gas or Diesel - Increases Mileage & Decreases Regens - for Personal or Commercial Vehicles - Treats 1250 Gallons - 16oz Bottle

  • Based on 142 reviews
Condition: New
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Availability: In Stock.
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Arrives May 27 – Jun 2
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Size: 16oz


Features

  • CUTS REGENERATIONS AND EMISSIONS : Fuel Ox fuel treatment contains a patented combustion catalyst that provides an earlier ignition and a more thorough and cleaner burn of fuel. With more fuel burned in the combustion cycle, less soot, smoke, or emissions are produced that clog and fill diesel particulate filters (DPFs) that initiates the regen cycle.
  • CAN INCREASE FUEL ECONOMY BY 7-10% : Fuel Ox contains a patented combustion catalyst that provides a more complete combustion. This allows for more productive burn of fuel.
  • 1OZ TREATS UP TO 80 GALLONS OF GAS OR DIESEL : Fuel Ox has a highly concentrated formula that treats both gas or diesel for a small and convenient inventory.
  • PROTECTS AGAINST ETHANOL : Fuel Ox coats fuel tank and system to prevent corrosion from ethanol found in gasoline.
  • LUBRICATES AND CLEANS ENGINE : Fuel Ox fuel conditioner replenishes lubricity that is missing in today's Ultra Low Sulfur Diesel (ULSD). It lubricates upper cylinder heads and injectors. Fuel Ox fuel additive also contains detergents to clean fuel lines, tank, and system.

Manufacturer: ‎Fuel Ox


Brand: ‎The Fuel Ox


Item Weight: ‎1.04 pounds


Product Dimensions: ‎4 x 2 x 4 inches


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎fo16oz


Date First Available: April 18, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 27 – Jun 2

This item is non-returnable:

Non-returnable due to hazmat safety reasons

View our full returns policy here.

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Top Amazon Reviews


  • Solid performance
Size: 16oz
We pull an 11,000 pound 5th wheel trailer with our 2008 Chevy Duramax Diesel. We use an air dam to divert air over the top of the trailer. Our experience with thousands of miles of towing prior to use of this product was an at best fuel mileage of 12 mpg and sometimes not even that. With this product and thousands more miles the fuel mileage as measured by the truck has been 13 mpg. It has been so consistent that I have gotten into the practice of resetting the computer every couple of thousand miles just to see if it will change from 13. It hasn't. With current diesel prices an 8% boot in fuel efficiency is a real money saver more than paying for the product. ... show more
Reviewed in the United States on December 8, 2021 by Peter A. Gordon

  • MUST have pump gas ? is not what you think
great stuff use in every thing that burns gas especially cars that sit for long periods of time .. your car will run smoother , over all performance will improve ,,SERIOUSLY
Reviewed in the United States on December 14, 2022 by james

  • The best
I used it for my cars and boat excellent results
Reviewed in the United States on February 29, 2024 by Excellent I put this in both my cars and my boat

  • Does the same for a fraction of the dosage!
Size: 16oz
In the past, I've used Lucas Gas Treatment to get miles out of a tank of gas. I would buy a one gallon jug for $36 and then fill up seven 6 oz. bottles. That begins to add up in a hurry! Then, I tried Marvel Mystery Oil's Gas Treatment version in a one gallon jug for $17 at Wal-Mart. Same as the Lucas Treatment, I would re-use the 6 oz. bottles by re-filling each one with the same results. The end result was that a one gallon jug of gas treatment didn't last long. So, at a trade show in Providence,RI that I did a few years back, a vendor next to me was selling Fuel Ox fuel treatment bottle in different sizes. I asked her what the difference was in their product (a family business) versus other similar products out there, and she stated that their product will give you the same results but for only a 1/4 oz. dosage per 20 gallon gas tank. In fact, a 3 oz. bottle would treat 240 gallons! That's 12 tanks of gas from only one 3 oz. bottle using just a 1/4 oz. of treatment fluid. I got the 3 oz. bottle because it already has the 1/4 oz. measurement on it (similar to a bottle of Sta-Bil). After the bottle was finished, I saved the little 3 oz. bottle and bought this bigger 16 oz. bottle to refill the smaller one. A 16 oz. bottle will treat 1280 gallons. This is the only company that can brag that the US Navy endorses their product! I'm averaging about 40-50 more per tankful of gas on each trip. ... show more
Reviewed in the United States on July 10, 2022 by J. Hall

  • I don't know
Size: 8oz
Well, I got a slight bump in fuel economy. Truck ran a bit quieter. As far as regens go. I am having issues with excessive regens. This had no effect on regens
Reviewed in the United States on February 15, 2024 by G

  • The only fuel additive you need
Size: 16oz
A friend told me about Fuel Ox and I am very pleased with the product! It has replaced all of the other fuel additives that I've tried in the past. I put it in all of my Jeep, Accord, CRV, log splitter, generator, dirt bike, quad, and lawn mower. Everything is running great! I used to use seafoam, lucas, techron, and various stabilizers. Fuel Ox has replaced them all. ... show more
Reviewed in the United States on July 27, 2021 by Kelly L. Merola

  • Best fuel additive on the market!
Amazing product!!!! What a difference I saw after just a couple of weeks. It has now been months since I started using Fuel Ox and I couldn’t be happier with the results. Compared to all other additives I’ve used, this one is BY FAR the best- nothing else even comes close. I’m getting better MPG and fewer emissions, this stuff really cleaned out the entire fuel system in my truck! My brother is now using it as well and says his old car is running better than ever before. Really compact and convenient size too! Will definitely be buying again!!!! ... show more
Reviewed in the United States on August 23, 2018 by N. Carey

  • so-so
I can't say it was useless but i say no difference than using other products that are much cheaper
Reviewed in the United States on October 16, 2018 by Branden0502

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