How Diesel Exhaust Fluid Is Beneficial for Your Vehicle

Diesel exhaust fluid is typically what’s used to reduce emissions in trucks without losing power. Selective catalytic reduction (SCR) is the process in trucks that reduces toxic emissions and the diesel exhaust fluid (DEF) is typically used as the key component in reducing emissions by breaking down nitrogen oxide (NOx) into just nitrogen and water. DEF is beneficial to the environment because it significantly reduces gas emissions that lead to air pollution and allows vehicle manufacturers to comply with federal emission regulations, but diesel exhaust fluid distributors also want you to know that the fluid can benefit your vehicle as well. Here’s what you need to know about DEF benefits for your vehicle.

Fuel Efficiency

The major advantage of DEF is how it maximizes your vehicle’s fuel efficiency. DEF is made of 1/3 urea and 2/3 de-ionized water, so it has high oxygen levels that allow your truck to not only have cleaner nitrogen and water emissions, but the combustion itself is more efficient, so you’ll use less fuel. The SCR system most trucks use utilizes an optimal design so that the engine performs efficiently with cleaner emissions. In fact, some truck manufacturers claim that using DEF can increase fuel mileage by up to 5%.

Increased Power

An initial concern when introducing SCR and DEF was that trucks would be unable to provide optimal power. However, when manufacturers were able to worry less about emissions because of the use of SCR and DEF, they found that engine improvements actually made it possible to get more power from the engine.

Less Maintenance

The efficiency of an SCR engine that uses DEF allows you to worry less about engine maintenance now and in the future. Since the engine runs so efficiently, there’s less wear and tear on engine components reducing the likelihood of repairs and extending the life expectancy of your truck’s engine.

Additional Considerations

Diesel exhaust fluid suppliers have made it easy to fill the DEF tank when necessary because running on a low or empty DEF tank can cause problems similar to running on a low fuel tank. Fortunately, it’s easy to find DEF in auto parts stores and a simple search for diesel exhaust fluid near me will yield numerous options for where to purchase more.

How Much Diesel Exhaust Fluid Do You Need?

DEF Over the last decade, diesel exhaust fluid (DEF) has quickly become a necessity for the modern transportation fleet. In 2010, the EPA passed more stringent emission standards to reduce the release of NOx and particulate matter from middle- and heavy-duty vehicle engines. At that time and years that followed, selective catalytic reduction (SCR) and DEF helped many diesel-fueled industries meet those standards. In 2014, DEF became even more nationally prevalent when the EPA required off-road equipment manufactured in 2014 and after to use DEF.
If you’re unsure of how much DEF packaging you need for your vehicles and other equipment, keep reading for a couple suggestions and recommendations to purchase the right amount.

How to Estimate How Much You Need

Many DEF suppliers provide online DEF usage calculators to give you an accurate projected amount for your vehicles or equipment. Typically, the estimated amount is calculated using four factors:

  • Number of automobiles in the fleet
  • Average miles per vehicle
  • Average miles per gallon
  • DEF usage rate

The most critical factor you must take into consideration is the rate of DEF your vehicles are using. Most manufacturers of heavy-duty vehicle engines equipped with SCR aftertreatment suggest a usage rate of 3%; in other words, 3 gallons of DEF are used for every 100 gallons of fuel.

It’s recommended that drivers of highway-traveling trucks should refill the DEF tank for every three diesel refills. For smaller vehicles, the DEF tank can be refilled with every oil change. Regarding heavy-duty automobiles, the required amount can be difficult to estimate due to engine configurations, idling times, and the weight of the load being transported.

How to Manage DEF Consumption

For a small fleet of three or four vehicles, a 55-gallon drum should suffice, and larger fleets (10 or more) should require at least one or two 330-gallon totes. Over time, your use of DEF will give you an accurate value of a weekly average use of DEF.

If you are not sure about your exact needs, many DEF suppliers can help you in your estimation and management plan.

Have Questions About Diesel Exhaust Fluid? Visit the Blue Sky Booth at the Gulf Coast Food & Fuel Expo.

Blue Sky will be exhibiting at the Gulf Coast Food & Fuel Expo, March 14-15, 2018. We invite you to stop by booth #831 and speak with one of our DEF experts. Discover for yourself why Blue Sky DEF is The Clear Choice for Clean Air.

The Gulf Coast Food & Fuel Expo will combine the traditional trade shows of the Petroleum & Convenience Marketers of Alabama, the Louisiana Oil Marketers and Convenience Store and Mississippi Petroleum Marketers and Convenience Stores . The 2018 Gulf Coast Food & Fuel Expo will take place on March 14-15 at the Mississippi Coast Coliseum and Convention Center in Biloxi, Mississippi, with housing available at the beautiful Beau Rivage Resort and Casino. The Gulf Coast Food & Fuel Expo will not only feature a large regional tradeshow, but also educational sessions, networking events, brand meetings, cocktail reception, and a golf tournament open to attendees and exhibitors.

Speak With One of Our Diesel Exhaust Fluid Experts at MPACT

Blue Sky DEF is thrilled to be exhibiting at the MPACT Show in Indianapolis, Indiana. We invite you to stop by booth #1924 and speak with one of our DEF experts. Discover for yourself why Blue Sky DEF is The Clear Choice for Clean Air.

The M-PACT Show is the largest gathering place in the Midwest for energy and convenience industry leaders. Each spring, the M-PACT Show brings together more than 4,500 professionals representing the entire spectrum of today’s diverse energy and convenience supply chain.

The premier regional tradeshow welcomes participants from Illinois, Indiana, Kentucky, Ohio and 400+ Midwest cities. Featuring nearly 600 exhibitors showcasing the latest products, services and technologies, plus a full slate of thought-provoking educational sessions presented by the industry’s most skilled trainers, The M-PACT Show delivers participants a unique, once-a-year opportunity to propel their careers—and their businesses—forward.

What Is SCR Technology?


If you’ve never heard of selective catalytic reduction (SCR), you are most likely not alone. As a feature of industrial boilers and diesel engines, it goes somewhat unheard of in the United States; however, its effects are worthy of notice and praise. As a result of SCR, NOx reduction efficiency rates, as well as the reduction efficiency rates of other harmful pollutants, are significantly higher. Read on for a full description of the process and its impacts and applications.

What Is Selective Catalytic Reduction?

Selective catalytic reduction is an active emissions regulating technology system applied to diesel engines that converts NOx into safe, breathable molecules. This chemical conversion is initiated using a catalyst and a liquid-reductant agent. The most commonly used reductant source is automotive-grade urea, also referred to as diesel exhaust fluid (DEF).

When directed onto an SCR catalyst, DEF is converted into ammonia, which reacts with NOx to create nitrogen, water, and small amounts of CO2. This chemical reaction is dependent on an SCR catalyst, which provides the required oxidizing atmosphere that permits nitrogen oxide reduction to take place.

Why Is SCR Critical?

Alone, SCR NOx emission controls can reduce up to 90 percent of NOx from diesel engine exhaust fumes; however, it does more than reduce NOx. A cost-effective and fuel-efficient technology, it can also prevent high amounts of other harmful diesel emissions, such as particulate matter (PM) by 30 to 50 percent and hydrocarbons by 50 to 90 percent. When integrated with a diesel particulate matter filter, SCR can cut PM by an even higher percentage.

What Are Its Applications?

Before its widespread application into diesel passenger vehicle engines, SCR technology was integrated into industrial boilers to reduce stationary source emissions. It was also used in large marine vessels, such as ferries and cargo vessels. When the EPA revised its emission standards for heavy-duty vehicles and Tier 4 emissions in 2010, SCR helped successfully meet the stringent requirements.

How to Determine the Quality of Diesel Exhaust Fluid


One of the factors that you have to explore even more than diesel exhaust fluid prices is the quality of the product you’re buying. Getting a great deal per gallon will end up being a problem in the long run if the quality is less than you’re expecting. There are several tests that diesel exhaust fluid goes through to make sure that the quality is where it should be at for your systems.

Determining the Quality

Diesel exhaust fluid has a standard set by ISO 22241-1 and other guidelines to ensure that you’re receiving the best quality possible. An open line of communication between you and your supplier is essential when it comes to determining the quality of your diesel exhaust fluid. You’ll want to inquire what analysis and testing are done on their products during the production process. You can ask if they are an API recommended Analytical Supplier which requires them to have the full amount of testing and analysis to qualify for the certification and licensing required by API. When corners are cut by testing and analysis not be completed, there’s a good chance that you may be rolling the dice when it comes to the quality you’re receiving.

Why Is Quality Important?

The selective catalytic reduction technology that works to reduce the oxides in the exhaust cannot handle impurities in the diesel exhaust fluid. Contaminants and other pollutants in a poor quality fluid can eventually cause it to malfunction or ultimately fail. This can lead to some big repair bills and other issues. Going through your due diligence to make sure that your supplier rigorously tests their product is the best way to ensure that you’re protecting your investment.

Not only should you consider diesel exhaust fluid price per gallon, but the diesel exhaust fluid quality, as well. At Blue Sky Diesel Exhaust Fluid, we understand that the quality of our product has an impact on your company, and that drives us to provide you with the best quality possible. Have a question about our quality control standards or testing? Contact us today to learn more. Our knowledgeable staff can help you.