Max Mileage Fuel Borne Catalyst is a liquid fuel additive that directly improves your engine’s combustion and efficiency.

Increase thermal efficiency 

Accelerates the burn rate of all shapes and sizes of diesel molecules so more BTU's of heat are released earlier during the power stroke instead of being wasted as soot and high EGT. Max Mileage increases the thermal efficiency of any engine by 10% on average. 

Burn soot at a lower temperature

Once in the exhaust system, the catalyst continues working by burning soot at a much lower temperature, 750 degrees Fahrenheit compared to 1000 degrees (the normal ignition temperature for soot).

Keep Injectors Clean 

The proprietary formula is supplemented with a fuel injector cleaner that removes fuel injector coking deposits and prevents new deposits from forming. This is critical to maintaining factory-rated fuel economy by ensuring optimal fuel “atomization” and fuel injector spray patterns into the cylinder.


Decrease soot emissions by 60%

Say goodbye to soot related "check engine lights." Stop replacing EGR coolers, EGR valves, DPFs, and maintain them with Max Mileage. If you have a 2007 and newer truck, you can keep your truck legal without sacrificing reliability. 

Reduce DEF Consumption

With lower EGT, less DEF (Diesel Exhaust Fluid) is used. Yet another way the product more than pays for itself. 

Longer Diesel Particulate Filter Life

Less soot also means your DPF will last much longer requiring only minimal maintenance, saving you time and money. 

Fewer regens

With Max Mileage you will notice fewer regens. Wasting fuel and time on regens of all types is not productive for your business.  

Extends engine life 

Soot is the enemy of any diesel engine. It's abrasive and harmful to your engine's rings and liners. Max Mileage will lower the soot levels in your oil sample. 

Smoother & quieter engine

Often the first and most noticeable change is a quieter and smoother running engine. You may also feel more power and a quicker response. 

Lower Exhaust Gas Temperature 

Increase the life of your turbo, manifold, and exhaust system sensors with lower EGT. 

May Increase fuel mileage 

Results may vary, but typically after the first few weeks many notice an improvement in fuel mileage due to the more efficient combustion. 


Made in the USA 

Max Mileage is formulated in a laboratory in Texas and then shipped to Pittsburgh Power where it is bottled. 

Lab Tested and Field Proven

Developed and tested specifically to provide the maximum benefit to the owner operator, we then spent months road testing to ensure you will see real world benefits. 

EPA Registered 

EPA registered as "288920002 Max Mileage Fuel Borne Catalyst"  under EPA law 40 CFR 79.23

Highly Concentrated

1 gallon treats 3200 gallons of diesel. Each ounce treats 25 gallons of diesel. It's formulated to mix in fuel tank very quickly and efficiently.

More than Pays for Itself

Other than the savings in DEF fluid and diesel, you will also see savings from a less frequent check engine lights and emissions system repairs. 

Use for Diesel and Gas

Safe to use with any diesel engine, old or new. You can even use it for a gasoline engine. For gasoline use, change the ratio to one ounce for every 30 gallons. 


Please check the box for Max Mileage FBC Distributors below. 



Things you need to know before you begin: You'll need a pair of gloves (nitrile, latex, or rubber) and measuring device. Be careful not to let the catalyst touch your skin. Please use one of our approved measuring devices or if you want to use your own device, it should be glass or fluorinated plastic. 

Dose at every fuel stop. Once you've filled the thanks, dose out the correct amount of catalyst for each tank. Measure out one ounce per every 25 gallons of diesel fuel. Use the back of the bottle for reference. For gasoline engines, the correct dosing is one ounce for every 30 gallons of fuel, or one ml per gallon. The catalyst is designed to mix itself. That's it! 


Rolling dynamometer engine testing for fuel economy under controlled conditions. We are pleased to share the results:

*FBC = Fuel Borne Catalyst 

Test results used with permission from Better Diesel FBC, Inc.


The test engine: 2016 Cummins ISX CM2350 set at 550 hp. The fuel treatment began April 2018 with 272,476 miles on the odometer and concluded in late July with 308,218 miles. The ECM had the standard factory program. The truck is a Kenworth W900 “SuperCab”.

The engine test facility:  We (Pittsburgh Power) performed the test for fuel economy using our Taylor chassis dynamometer. Our dyno uses a water brake to control the engine at a fixed rpm and percent load (torque). We also measured the exhaust emissions using a Portable Emissions Measurement System manufactured by Sensors Inc. These emissions measurements were converted to fuel consumption estimates using EPA compliant methods for certifying engine fuel consumption (40 CFR Part 1065). Dyno testing eliminates any influence of external variables on fuel economy such as wind and rolling resistance, driving style, and terrain.

After the baseline testing was complete, the same engine began use of diesel treated with Max Mileage FBC (fuel borne catalyst). The driver noted smoother, quieter engine operation and better pulling power (common feedback from customers). His manually logged baseline MPG was 5.2. The driver noted that fuel mileage gradually increased over the evaluation period. The driver-logged MPG from beginning to end of the 3-month test period was 5.85 MPG. This represents an increase of 13% which included the initial clean-up and conditioning time. The driver-logged MPG for the last 2 months of the test period was 5.94, an increase of 14%. These results are consistent with the dyno results obtained under controlled conditions of rpm and load.

“Return to Baseline” test and repeat: As a check on the driver reported MPG evaluation, we ran a repeat test in which the truck was driven with untreated fuel for ~30,000 miles. This “return to baseline” evaluation began in the fall of 2018 with use of “winter” fuel and lasted for approximately two months. Treatment of the fuel with Max Mileage resumed on Jan. 24, 2019, again using winter fuel, and ended on Mar. 14, 2019. Recorded numbers from the truck owner’s manual fuel log were 2,568 gallons of diesel burned over 14,289 miles driven since he resumed use of treated fuel. That adds up to an estimated fuel economy of 5.5 MPG, significantly higher than the original 4.9 MPG achieved over the previous two-month period. The increase in driver reported fuel economy for this second evaluation was 13%, consistent with previous results obtained with the rolling dynamometer (controlled conditions) and the MPG calculated manually by the owner of the engine from his fuel log.

Do the Math: if you spend $120 per month on the fuel catalyst, you can see that it pays you. If you get an increase in fuel economy of only 2.5 %, then the cost of the fuel catalyst is covered*.*this example assumes 10,000 miles driven per month at 6 MPG and a fuel expense of $3.00 per gallon.


  • Q: Can I use it for my diesel pickup truck, diesel car, farm tractor? 

    A: Yes, it can be used for any diesel engine. 

  • Q: Can I use it for my gas engine?

    A: Yes, but please change the ratio to 1 ounce for every 30 gallons. it has anti-knock properties so it works well for classic cars.

  • Q: Do you have distributors?
    A: Yes, please check the map above for contact information. 
  • Q: How is this different from other fuel additives? 
    A: Be assured, there is no other product on the market with the same  active ingredients. No other product can come close when it comes to reducing soot and all the benefits that follow. 
  • Q: Will Max Mileage FBC work for my pre-emissions heavy duty diesel engines? 
    A: Yes, it works the same way in all diesel engines to improve combustion on average by ~10%. The main results are better fuel economy and dramatically lowered exhaust emissions as demonstrated by validated test procedures.
  • Q: Can I mix with other fuel additives?  
    A: Yes, it's safe to mix with all other fuel additives. But please do not mix it directly with other additives, instead let them mix in the tank. 
  • Q: Will I see changes to my oil sample? 
    A: Yes, you may see an increase in Iron. This is nothing to worry about as long as other wear metals stay consistent 
  • Q: Can iron deposits from Max Mileage hurt my engine?
    A: No. The iron-containing molecules in Max Mileage FBC are fully dissolved as a liquid ingredient, similar to iron in your blood. It’s also diluted to just a few PPM so it cannot cause any damage due to frictional wear in the high pressure fuel pump and fuel injectors. Max Mileage's EPA testing concluded there are no negative effects from long term use. 
  • Q: Max Mileage FBC is on the EPA list of registered fuel additives under CFR Part 79. What does this mean? 
    A: This means that Max Mileage FBC meets or exceeds EPA criteria for demonstrating no harm to either engines or the environment and is approved for use in all US road diesel.
  • Q: What is this red-orange residue on my DPF filter? 
    A: Because of the absence of the oily black soot coating on the DPF it is easy to see the red-orange discoloration that results from the iron ingredient over many thousands of miles driven. This will be removed with periodic cleaning of the DPF as recommended by the engine manufacturer just like other ash (metallic) residues from other sources, including engine oil, coolant, dust and dirt, and rust contaminated fuel. 
  • Q: Will Max Mileage FBC eliminate ash deposits in my DPF? 
    A: Max Mileage FBC is designed to reduce and/or eliminate soot deposits. Soot is the primary culprit for DPF regeneration problems as well as premature engine wear and emissions system failures in modern diesel engines. Unlike soot, ash cannot be burned off. Total ash from all sources (fuel contamination, engine oil additives, dirt and dust) only makes up a very small fraction of the incoming soot, typically less than 5%. Ash remains in the DPF as an incombustible material left behind following the DPF regeneration process and builds up over very long periods of time. Therefore, ash must be periodically removed via shop cleaning. 
  • Q: How does Max Mileage FBC decrease my DEF usage? 
    A: Simply put, a more efficient engine will produce less NOx. Max Mileage FBC significantly increases the thermal efficiency of ANY engine, with or without emissions after treatment systems. In newer engines, the SCR system injects DEF fluid into the exhaust corresponding to the amount of NOx measured by the NOx sensor. Because the catalyst lowers NOx levels by 15% on average, the ECM responds by sending a signal to the SCR to inject less DEF, correspondingly. 
  • Q: I have an “in-service” engine. How long will it take for Max Mileage FBC to burn out carbon deposits and soot build-up in my engine and exhaust system? 
    A: The “clean-out’ effect of Max Mileage FBC for an in-service diesel engine can take 4 to 6 weeks, on average, to complete. This means that initially, the DPF sensors may react to higher levels of smoke being produced internally as the soot is being burned off at a lower temperature with the help of the fuel catalyst. In some cases, especially for very high mileage engines, things may appear to get worse before they get better. This is normal and should pass without resulting in an engine “derate” situation.   
  • Q: Why is Max Mileage so expensive? 
    A: At the suggested dilution, a bottle of Max Mileage will treat 3200 gallons of fuel, costing you only $.07/gallon. Besides the expensive ingredients that go into the catalyst, there is considerable research and development that went into formulating the product. Of course, the benefits you realize from using Max Mileage provide a substantial return on your investment.  
  • Q: Is Better Diesel FBC approved by CARB for use in California road fuels? 
    A: Yes.
  • Q: What is my cost for Max Mileage FBC? 
    A: At the suggested treat ratio, one gallon of Max Mileage FBC will treat 3200 gallons of fuel at a cost of around $.07/gallon of fuel. This translates to approximately $0.01/mile of cost assuming a baseline for fuel consumption of 7 MPG. Our product has been verified to produce tangible benefits that translate to lower cost of ownership of heavy duty transport trucks. The ROI (Return on Investment) can range anywhere from 300% to 800%, depending on the type of engine and mode of operation. The maximum investment for a typical OTR truck owner will be 4 to 5 gallons of Max Mileage FBC at a cost of $1,000 – $1,500 per year. Savings accrue through reduced fuel costs, reduced DEF consumption (if applicable), and less down-time especially from exhaust after-treatment system repairs (if applicable). All diesel engines potentially will have extended longevity due to reduced engine wear due to soot and the accumulation of carbon deposits.
  • Q: Does Max Mileage FBC have any effect on the lubricity of diesel? 
    A: No, our independent tests using ASTM D6079 demonstrate that Max Mileage FBC has no measurable effect on the lubricity of diesel fuel.   
  • Q: Why does my Max Mileage FBC turn dark brown after sitting for some time? Is it safe to use? 
    A: This is a common occurrence and has to do with how the chemical reacts to light. The change in color does not affect performance or shelf life. Please continue to use the product. 
  • Q: How long does Max Mileage FBC last? 
    A: Max Mileage has a long shelf life, at lest two years. 


If you have more questions or would like to tell us about your experience with Max Mileage, please send us a message! 





never worry about your dpf again with a lifetime WARRANTY from dpf alternatives

Pittsburgh Power has partnered with DPF Alternatives to provide our mutual customers with an

incredible opportunity. When you have your DPF restored through their proprietary ultrasonic cleaning and

maintain your aftertreatment components with Max Mileage Fuel Borne Catalyst you will have an unlimited

mileage + time worry free warranty. This revolutionary program is only possible due to the proven

results of Max Mileage’s ability to decrease your soot emissions and keep your emissions system running clean. See DPF Alternatives's website for more information and a location near you.

Get Max Mileage delivered to your door every 30-90 days hassle free. Plus you save on shipping!

Your first order will be sent immediately with subsequent orders shipping on your chosen frequency. You must receive your second order before you can cancel. Upcoming order date and frequency can be modified from your online account. Subscriptions are only available in the 48 contiguous United States. Visit the Max Mileage product page on our website to get started. 

How to subscribe: Go to the Max Mileage product page. Before adding to your cart, select "Subscribe & Save with Free Shipping" and then select the frequency from the drop down menu. Then hit "add to cart" and finish the checkout process. 

Canadian Residents: Our distributor Brad Richmond in B.C. has a subscription service available for all Canadian residents. Visit his website here for more information: 


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Download the safety data sheet here

Includes technical information for how the product should be handled and health and safety risks when handling the product.