Find DEF (diesel exhaust fluid) near you. DEF is a high-purity solution of 32. Other symptoms may include feeling lightheaded. Our products are high in demand due to their premium quality, seamless finish, different patterns and affordable prices. Diesel powers 98% of the large over-the-road Class 8 trucks hauling these goods. You can give us a call at 1-610-595-4152 or fill out the form below for more about our services. 4. It is effectively non-toxic, as well as being pH-neutral. 4203. There are many aftermarket cleaning methods available (bake & blow, etc) but the only method approved by Detroit ® is Detroit ® Reman’s proprietary liquid-cleaning process. Motorcraft PM27N - Diesel Exhaust Fluid Nozzle Assembly $9. 5% ultra pure automotive grade urea. 99. Domestic Fuels & Lubes offers Ocean Blue diesel exhaust fluid (DEF) for businesses across Virginia Beach, Nortfolk and Newport News in NC and VA. You can figure, for every 50 gallons of diesel, you’ll need 1 gallon of DEF. What is Diesel Exhaust Fluid? DEF is an environmentally friendly substance made primarily of 67. Material Name: Performance Plus Diesel Exhaust Fluid SDS ID: 820424 _____ Page 2 of 8 03/21 Other Hazards None known. 5 Gallon Shop for Diesel Exhaust Fluids at Tractor Supply Co. Mfr. Refer to section "Checking Diesel Exhaust Fluid Quality". Packaging Type. Brands. Shop today!That’s why, in 2010, it became standard that all diesel trucks be equipped with systems dedicated to putting DEF to use. 5, AdBlue, Diesel Exhaust Fluid, DEF 2. Aftertreatment diesel exhaust fluid (DEF) dosing unit may appear to be non-functional Root Cause: Neither a good or malfunctioning aftertreatment DEF dosing unit can cause Fault Codes 3558 or 3559 to come active as these. Fortunately, the only gear you’ll need to add DEF to your tank is a funnel to help reduce the chances for any potential mess. • Diesel Exhaust Fluid (DEF) is a high purity chemical fluid and should be treated similarly to engine oil. In many cases, it can result in a violation of local laws or regulations, voiding of the. 4. . S. 4. 99. Diesel Direct delivers diesel fuel, DEF, fuel storage and more to our partners nationwide, including Louisiana. Diesel Exhaust Fluid (DEF), in some locations referred to as "Aqueous Urea Solution" and at others "AdBlue", is a clear, colourless, non-toxic, and virtually odourless, liquid that is injected into the post-combustion exhaust steam of a diesel engine to reduce emissions. SAFETY DATA SHEET GHS product identifier Other means of identification Product type Section 1. 5% deionized water and 32. This is an excellent solution for moderate fleet size. 5% demineralized water. • It is normal for DEF to freeze at temperatures below 12⁰F/-11⁰C. Suppose you’re searching for diesel exhaust fluid near me in the Columbus, Ohio, metro area. 1 million by 2027, at a CAGR of 10. Northbrook, IL 60062 - USA T (847. If skin irritation occurs: Get medical advice/attention. Once opened, protect the liquid against any contamination by fuel, dirt, oil or any other contaminants. This system is called a Selective Catalytic Reduction (SCR) implemented by vehicle manufacturers to meet EPA emissions standards in 2010. As the world's largest DEF producer, Yara offers the security of supply and reliable quality DEF. Use of the substance/mixture : Solution for NOx reduction in SCR systems . Commercial vehicles and off-road equipment must not use diesel exhaust fluid faster than the fuel capacity of the equipment. 5% purified water and 32. F) Making Machine. Many products available to buy online with hassle-free returns!BlueDEF PLATINUM™ is formulated to exacting international standards and backed by our Purity Guarantee, ensuring that only high-quality DEF is in your truck tank and flowing through your diesel engine. Use of the substance/mixture : Solution for NOx reduction in SCR systems . Report incorrect product information. Diesel Exhaust Fluid (DEF) like Adblue® is a urea/water solution injected upstream from the SCR catalyst. Cullen (4 miles) Taylor (11 miles) Sarepta (13 miles) Related Categories. com. 5 percent pure de-ionized water that works with selective catalytic reduction (SCR) emission-reducing technology to reduce NOx emissions. Available for 3+ day shipping 3+ day shipping. DPF (Diesel Particulate Filter) lamp – soot is present in exhaust filter. 9" Wide - 12" High - 7" Long. Diesel Exhaust Fluid Heater Search Results. Sale Items. 9 x 11. Carried in a separate tank, this fluid is injected into the hot exhaust stream and absorbed onto a catalyst. Diesel exhaust fluid (DEF) is a clear liquid that reduces the harmful emissions a diesel engine produces. Diesel Exhaust Fluid (DEF) is one of the key elements of the Selective Catalytic Reduction (SCR) process used by most medium and heavy-duty engine builders to meet EPA 2010 regulations. Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS CAS Component Name Percent 7732-18-5 Water 67. If you are a retail outlet and want to offer Diesel Exhaust Fluid to your customers, read more about Air1’s retail Diesel Exhaust Fluid package below. suv diesel. What is DEF? Diesel Exhaust Fluid (DEF) is a solution of urea and water that’s injected into the exhaust stream of diesel vehicles to turn NOx gases (harmful emissions) into nitrogen and water. 4. Prolonged storage above 86 degrees will cause. This is true, because Kubota does not use DEF on any tractor under 75HP. 9. Daniel Brooks. It is standardised as AUS 32 (aqueous urea solution)DEF is used as a consumable in selective catalytic reduction (SCR) in order to. However, incomplete decomposition of urea can lead to unwanted deposits formation, thereby resulting into backpressure increase,. 58 / Monday, March 26, 2012 / Rules and Regulations Revision date: 03/05/2015 Supersedes: 07/01/2009 Version: 1. Diesel Exhaust Fluid is formulated with 32. BlueDEF PLATINUM™ is formulated to exacting international standards and backed by our Purity Guarantee, ensuring that only high-quality DEF is in your truck. Exhaust gas recirculation or EGR is a common process that is used in nearly all modern ICE engines to reduce the amount of unburnt fuel in a vehicle's exhaust gases. Commercial Fuels ; Commercial Fuels . 3. 4. The downside is that because DEF is nitrogen-based, it's corrosive to most metals and coatings. It was developed by leading engine manufacturers to reduce vehicle exhaust nitrous oxide. Conveniently located in the heart of South Louisiana, Miguez Fuel & Lubricants is committed to providing the highest quality fuels and lubricants. Eye Contact: Prolonged exposure to liquid may cause a mild irritation. 1. Technically known as diesel exhaust fluid (DEF), AdBlue is ostensibly an anti-pollutant that's added to most modern diesel engines. Urea is a compound in Nitrogen that turns to ammonia when heated and is used in a variety of industries. Diesel exhaust fluid is a 32. It is used in Selective Catalytic Reduction (SCR) equipped diesel vehicles to reduce NOx emissions chemically. 703-342-6361 TTY 711. DPF = Diesel Particulate Filter. Call Us 800-564-5142 info@denlube. For most diesel power cars, light duty and semi-trucks from 2010 to current. DEF is a 32. Diesel exhaust fluid is a urea solution regulated by the American Petroleum Institute (API), comprising 67. DEF is a purified water, and urea solution injected into diesel engines’ exhaust streams. Emergency. Diesel exhaust fluid is a 32. 1 million by 2027, at a CAGR of 10. 5 gallon container and may be used in any vehicle diesel emission system using SCR technology requiring DEF. 1000 Magnolia St Houma,. Home Page. Diesel exhaust fluid is formulated with 32. Product. Urea is injected into diesel engines to remove oxides of nitrogen (NOX) from the vehicle’s exhaust stream. Our editors and experts handpick every product we feature. 2. 4. Mfr. Diesel Exhaust Fluid is produced to an international standard (ISO 22241). 8L Engine. Diesel Emissions Fluid (DEF) Injector. Oil Change Facility. Yes; Refer to section "Diesel Exhaust Fluid in Fuel" for fuel intrusion or Refer to section "Diesel Exhaust Fluid in Coolant" for coolant intrusion. Diesel exhaust fluid is a mix of de-ionized water and urea, which reacts with the hot exhaust gases to cut nitrogen oxide emissions,. Click here for details. 5 Bn by 2032 at a CAGR of 6. The diesel exhaust fluid is hydrolyzed to ammonia which then inside the SCR unit, assists in the breakdown of NOx to harmless Nitrogen gas and water. Use dedicated equipment for. Near Railway Crossing Gota Road, Gota, Ahmedabad - 382482, Dist. 5-gallon jugs, 55-gallon drums, and 330-gallon totes, and for even larger jobs, loaned bulk tanks with electric. • Never store Diesel Exhaust Fluid (DEF) in old oil or diesel tanks. Diesel Exhaust Fluid retail outlet package available from Yara – a pioneer in the Diesel Exhaust Fluid market. Blue Def DEF002-2PK Diesel Exhaust Fluid – Best DEF Fluid For Cummins. $7. 5 percent urea and 67. A nozzle is often a pipe or tube for the cross-sectional area with an adjustable, comfortable design. Oil Change Facility. DEF is contained in a separate tank and sprayed into the exhaust gases. We find this more common on - and 1-ton pickups which do a lot of heavy towing. Non-toxic, non-flammable and non-polluting diesel exhaust fluid. Caution: eye and skin irritant. The DEF needs to adhere to strict purity criteria in order for the SCR unit to function effectively. • Diesel Exhaust Fluid (DEF) also known as Reductant is a fluid comprised of highly purified and deionized water and urea. Don’t drive over leaf pile. 1 September 2015 EN (English US) 1/6. Diesel Exhaust Fluid (DEF) DEF, or Diesel Exhaust Fluid, is the reduction agent used in Selective Catalyst Reduction (SCR) aftertreatment systems. Material Name: Performance Plus Diesel Exhaust Fluid SDS ID: 820424 _____ Page 2 of 8 03/21 Other Hazards None known. 1. For the SCR unit to operate properly, the DEF must meet an. 5% urea and 67. DEF is available at the pump at Name of Fellow Carrier, seven days a week, 24 hours a day. DEF Only Sticker - Diesel Exhaust Fluid Label by Fuel Stickers | 6x2 | 3 Labels. 7L Cummins engineSince the 2010 EPA mandate to install SRC systems in Diesel Engines made on or after January 1, 2010, diesel exhaust fluid (DEF) has become a very popular item. It contains 32. The organic carbon includes polyaromatic. Deliv. The result is remarkable; DEF breaks down NOx to H 2 O (water), CO 2 (Carbon Dioxide) and N 2 (Nitrogen). com. Kolkata 1, Princess Street, Near Orient Cinema, Bow Barracks, Kolkata - 700072, Dist. Add to Cart . 3 million in 2022 to USD 11,979. Prolonged storage above 86 degrees will cause. Pros. Earn 5% cash back on Walmart. AdBlue is an exhaust fluid, not a fuel additive. 5% Liquid. TrustSEAL Verified. The mixing bowl member reverses the flow direction of exhaust gases, which are led into the annular space between the flow tube and the cylindrical shell, preferablyOne of the more common diesel exhaust systems used is AdBlue, which can be found in American, European, and Japanese cars. Renewable diesel, ethanol, fuels, diesel exhaust fluid, NGLs, chemicals. 2. Shop for the best Diesel Exhaust Fluid Hose for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts. Air1 offers you bulk Diesel Exhaust Fluid. * Diesel exhaust fluid freezes at 12 F. For professional use only. 3 out of 5 stars:Găsește imagini de stoc cu tema diesel exhaust fluid, în format HD, și alte milioane de fotografii, ilustrații și vectori de stoc royalty free din colecția Shutterstock. Urea is used in various industries. 5 57-13-6 Urea 32. This diesel exhaust fluid is a pure, aqueous solution of urea and water that is used in new diesel-powered engines with selective catalytic reduction technology. Note: The vehicle is designed to. 5% purified water and 32. It's a trade name registered by the German car manufacturers association, but is the most recognised form of Diesel Exhaust Fluid (DEF). 1,000 litres. 0 05/08/2015 Diesel Exhaust Fluid Page 1 SECTION 1: Identification of the substance/mixture and of the company/undertaking 1. DEF is available at the pump at Name of Fellow Carrier, seven days a week, 24 hours a day. 985-748-8214 . Usage/Application: Truck. Diesel Exhaust Fluid can be used again, once thawed, as it returns to its original state. The diesel exhaust fluid aftermarket for pumps is projected to grow from USD 7,373. 5 ( & 100 amp alternator) not sure. This system is called a Selective Catalytic Reduction (SCR) implemented by vehicle manufacturers to meet EPA emissions standards in 2010. If you do accidentally spill fluid, you can simply wipe it up with a towel and water. 64 per hour in Sarepta, LA. * Only use diesel exhaust fluid that has been delivered in dedicated, sealed diesel exhaust fluid packaging. Distributor. 2 x 3. In chemical terms, it’s a mixture of 67. 5 percent pure de-ionized water that works with selective catalytic reduction (SCR) emission-reducing technology to reduce NOx emissions. It is a safe-to-use fluid. Diesel Exhaust Fluid (DEF) is used in diesel engines with SCR systems to reduce emissions. 5% urea and pure (de-ionized) water, and has the following characteristics: Œ Nontoxic and Nonpolluting Œ Nonflammable Œ Stable and Colorless Œ Weak Ammonia SmellDiesel exhaust fluid (also referred to as DEF or AUS 32) is injected into the diesel exhaust stream and the heat from the exhaust, the fluid, and a catalyst convert the NOx into the harmless gases. Houma, LA. And for even larger jobs, we offer. El fluido de escape diésel es una solución al 32,5 % de urea técnicamente pura en agua purificada. 5 percent purified water and 32. Urea is derived from a byproduct of urine, but for mass production purposes, it is synthetically made. Ignition ON, command the Reductant System Leak Test ON with a scan tool. Si se ingiere, enjuagar la boca con abundante agua. Increase productivity and cut down on costs by reducing downtime and fuel spent driving to and from gas stations. AirBlueFluids DEF meets ISO 22241 for purity and composition, and is American Petroleum Institute. 3 MPa, 3. 111. Shop the full range of AdBlue online with Halfords UK. Ports Petroleum is a wholesaler & transporter of diesel, gasoline, home heating oil, & diesel exhaust fluid. Watch on. Diesel Exhaust Fluid (DEF) DEF is a urea-based chemical reactant designed specifically for use in SCR systems to reduce NOx emissions. Sale. 5 gallons of DEF will last approximately 800 miles on the road. In addition, in the case of gasoline exhaust purification, there is a significant heat inflow due to the oxidation of CO and hydrocarbons (up to 100°C per 1% CO), which is absent during diesel exhaust purification due lower. 1 Issue 1: DEF Contamination. . Meets automotive industry specification defined by ISO 22241. Get contact details & address of companies manufacturing and supplying Diesel Exhaust Fluid, AdBlue, AUS 32 across India. Diesel Exhaust Fluid comes in the following standard pack sizes: Diesel Exhaust Fluid Bottles (1 & 2. Well, the urea I buy in a bag is 48-0-0. Our DEF tote is perfect for large fleets of big trucks traveling many miles. We carry DEF pumps, hoses, nozzles, totes and barrels. Diesel exhaust fluid is crucial in reducing harmful emissions from diesel engines. 2 Issue 2: DEF Freezing. In 2008, the Environmental Protection Agency (EPA) issued a mandate requiring the use of diesel particulate filters on all on-road diesel engines. 5-gallon container with a special nozzle for easy pouring and a. 5% de-ionized water, mixed with 32. Intended Use of the Product Diesel Exhaust NOx Reducing Agent 1. EQUIPMENT SOLUTIONSDetail Description. 3350 Davie Road, Suite 203 Davie, FL 33314 USA P: +1 954 463 1075 F: +1 954 463 1270 Email: info@kus-usa. 4 bn by the end of forecast period in 2022. 5. 25 pounds. We manufacturer DEF making machine in India and designed specifically as per needs of our Indian customers. According to TMR analysts, the global diesel exhaust fluid market is anticipated to generate value of US$14. Includes a special nozzle for easy pouring. Add to Cart . Shop for Diesel Exhaust Fluids at Tractor Supply Co. Material: EPDM Rubber. A vehicle sat for an extended period of time. Diesel Exhaust Fluid System Circuit Failed High Table 1. 7 g/kwh. You can find AdBlue at more than 45 truck stops right now across the Z and Caltex truck stop network. Urea is a refined compound also found in fertilizers and deionized water is, well, water without. Buy DEF Fluid Diesel Exhaust Fluid in Florida | Free Shipping | Best Prices | 55-Gal Drum Barrel | 275-Gal Totes Bulk | Supplier of DEF Fluid diesel exhaust fluid for sale in Florida. Instructions. 5. 5GALPLAT Part #: 2. As the world's largest DEF producer, Yara offers security of supply and reliable quality DEF. By Russ and Tiña De Maris. Neck Diameter (in): 2-3/8 Inch. Diesel exhaust fluid, or DEF, is a solution of deionized water and urea. 1. It is used in a process called selective catalytic reduction (SCR). In addition, Ricochet Fuel offers 2. ACDelco Diesel Exhaust Fluid is a stable, colorless, non-flammable, non-toxic primary component used to help convert NOx, an environmental pollutant, into harmless nitrogen and water. Assisting them in determining the proper loan program, completing the. Diesel Exhaust Fluid, used in SCR vehicles, can be purchased at any licensed Diesel Exhaust Fluid supplier. 76 En Stock. DEF Diesel Exhaust Fluid are made to meet the specific demands of diesel engines. However, as a general guideline: On average, most diesel trucks consume DEF at a rate of 2-3% of the truck’s fuel consumption. Find here Diesel Exhaust Fluid, AdBlue wholesalers & Wholesale Dealers in India. What is DEF? Diesel Exhaust Fluid (DEF) is a solution of urea and water that’s injected into the exhaust stream of diesel vehicles to turn NOx gases (harmful emissions) into nitrogen and water. 5% de-ionised water. 5% urea from a strictly chemical disposition. · The diesel exhaust fluid section When a DTC is set, that code description will tell you what part of the after-treatment system is at fault. We understand that being a responsible business is about more than the bottom line. 5% urea. For fleets bulk DEF management is a critical component of keeping trucks on the road. We aim to show you accurate product information. The downside to EGR is that it. Running out of diesel exhaust fluid causes your vehicle to experience a dramatic reduction in power and slows it to a crawl. Shop for the best Diesel Exhaust Fluid Filler Cap for your vehicle, and you can place your order online. com. Made using deionized water and synthetic automotive-grade urea. Also see Diesel Exhaust Fluid 0 12. Warranty StatementDennison is the leading distributor of diesel exhaust fluid (DEF) in Massachusetts, Rhode Island, Maine, Connecticut, New Hampshire, Vermont, & New York. 30 USD. 3. 1 Aftertreatment diesel exhaust fluid dosing unit is malfunctioning. Helps reduce emissions of NOx gases that are produced inside the engine during combustion. At this concentration level, the urea and the water freeze and thaw at the same rate – ensuring that you always have the correct amount of each. 5% de-ionized water. For DCA150SSJU4F2 generators open the enclosureDiesel Fuel Supplement - 55 Gallon Drum. I-66 Transfer Station. The diesel exhaust gas temperature is lower than that of gasoline transport [7, 25, 26]: 300–600 vs. DIESEL EXHAUST FLUID (DEF) Required for diesel vehicles equipped with a selective catalytic reduction (SCR) emissions after treatment system. 5 percent deionized water. Specially formulated for diesel engines with SCR systems. Diesel Mechanic in Sarepta on YP. This content is for general information only. We sell: Diesel Exhaust Fluid in bulk by case, by tote, by pallet. Site Type: All Location Types. Call McPherson to talk to our DEF sales team at 1-888-802-7500, or at email us at [email protected] gallon jugs, 55 gallon drums, 330 gallon totes, and bulk DEF to your bulk tank. Comes in a 2. DEF is an odorless, colorless, non-flammable and nontoxic solution that is harmless to people, equipment and the environment. Diesel trucks average 6. Genuine Audi Diesel Exhaust Fluid | PM-27-JUG. An active code merely means that the fault is happening “now. 5 Gallon. appropriate local exhaust ventilation, or other engineering controls to control airborne levels below the recommended exposure limits/guidelines. 2320 Rue de la M tropole Longueuil QC J4G 1E6 Peter Trepanier +1 (450) 679-8866. DEF = Diesel Exhaust Fluid. Product identifier Diesel Exhaust Fluid Other means of identification FIR No. Diesel Exhaust Fluid is a mixture of 67. Harvey Fueling Dock Harvey Canal No. A Myriad of Factors Affect the End Cost of DEF. Urea is a derivative of urine byproducts, made. In Stock At My Store. $1,925. Fleet Fueling. Its main purpose is to reduce harmful emissions caused by diesel. Diesel Exhaust Fluid is a mixture of 67. SuperTech DEF fluid will get the job done. trashmail@fairfaxcounty. 4 miles from Muddy Bottoms ATV & Recreation Park. DEF 32 is readily available at most automotive supply stores and fueling stations. ). Diesel Exhaust Fluid (DEF) is urea liquor, which is required, by law for, modern diesel engines for emissions control. It is composed of urea and deionized water. 183606 Recommended use Diesel Exhaust Fluid. It may even prompt the sensors to believe that the truck’s DEF tank is empty. Emissions regulations in the U. T 888. See reviews, photos, directions, phone numbers and more for the best Diesel Engines in Sarepta, LA. Established in the 2018 at Nagpur, Maharashtra, we "SK India"are a Sole Proprietorship based firm, engaged as the foremost Manufacturer Of Automatic Grade Urea, Diesel Exhaust Fluid And Adblue Making Machine. If you’re thinking to yourself, “Urea is. Select a Store Find One Near You. It has one simple (but very important) job to do – reduce the harmful emissions otherwise ejected by diesel-fueled vehicles. Near-source exposures to diesel exhaust may be as much as five times higher than the 1995 population time-weighted average total air exposure. Near HP Petrol Pump Urli Devachi, Saswad Road, Mantar Wadi, Pune -. 5% deionized water that is used in Selective Catalytic Reduction (SCR) systems on diesel engines. Buy online, free in-store pickup. OCTONOL Diesel Exhaust Fluid (DEF) is suitable for all Bharat Stage 4 and Bharat Stage 6 engines fitted with SCR systems. 5% high-purity urea and 67. Urea decomposes into ammonia (NH3) which acts as reducing agent in the de-NOx reaction process. Fax. It is API registered and also meets or exceeds OEM specifications. Diesel Exhaust Fluid (DEF) System 3A1189G EN For pumping diesel exhaust fluid. What Is DEF? Diesel exhaust fluid, commonly referred to as DEF, is a solution of 67. 5% purified water and 32. 5GALPLAT Part #: 2. Ask about our different size containers, including 2. See the diesel fuel price and gas prices near me, intended bio blends and propane prices, and DEF cost right now at Pilot Flying J with fuel cost. Check the Diesel Exhaust Fluid (DEF) for contamination. Diesel exhaust fluid is formulated with 32. 5% Urea and 67. 4. Hazardous Waste Manager. The benefits of using (EFEF) include the following: 1. Find out more information on Diesel Exhaust Fluid in UAE on Yellow Pages UAE. $ 16 30. Anything from bulk materials and liquids to palletized and break-bulk products. Top diesel exhaust fluid. If you are running diesel equipment anywhere in North America, Europe, and many other places in. Customer reviews & ratings. 5% urea. Business listings of Diesel Exhaust Fluid, AdBlue manufacturers, suppliers and exporters in Pune, डीजल एग्जॉस्ट फ्लूइड विक्रेता, पुणे, Maharashtra along with their contact details & address. An injection of DEF into the exhaust stream turns the NOx into water. We offer our DEF solutions in several packaging options, including direct to your equipment delivery, pallets of 2. During a DPF service regen, the SCR is too hot to. 3. 5%, it turns solid. A diesel engine's emissions of diesel exhaust fluid (DEF), also known as AUS 32 and sold as AdBlue, are used to lessen air pollution. 2 results for Diesel Exhaust Fluid in UAE. 5% ultra pure automotive grade urea. Find a location (800) 364-4314. Last. Diesel exhaust fluid consists of 67. Product Specification. Telemetry Fuelcard Storage and Package Items Promotional Items. Treat with respect. 7L Diesel 2013-2020 $59. Valvoline Premium Blue Diesel Exhaust Fluid. Remove the Q61 emission reduction fluid injector from the exhaust pipe leaving the reductant line and electrical connector connected. DEF is a purified water, and urea solution injected into diesel engines’ exhaust streams. Environmental Protection Agency (EPA) standards for diesel engine, yet there are a lot of people who don’t understand what DEF is, its function and how to store it. However, generally speaking, this kind of fuel will be more expensive than traditional diesel fuel, but long term can save money. What Is Diesel Exhaust Fluid? Diesel Exhaust Fluid (DEF) is used in diesel engines. Diesel Exhaust Fluid (DEF) (15) Questions & Answers (4) Hover Image to Zoom. Compare with similar items. Vehicles that use diesel exhaust fluid will have indicators on the dash that will alert the driver of the quantity of DEF on board. 5% urea and 67.