How do you make DEF fluid?

DEF is a mixture of (typically) 2/3 deionized water and 1/3 urea. It's carefully regulated by the American Petroleum Institute. Technically, urea is derived from one of the byproducts of urine. But it's synthetically made, so no cats are ever harmed in the production of the fluid.
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Is there a substitute for DEF fluid?

DEF is urea or otherwise known as aqueous ammonia. Windshield washer fluid that contains ammonia will do in a pinch.
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How do they make urea for DEF?

Contrary to popular myth, cow and bat urine and DEF are not a thing. The urea used in the manufacture of DEF is synthetically derived from ammonia and carbon dioxide, and urea production plants are often adjacent to other sites where ammonia is produced, such as coal and natural gas refineries.
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Is DEF fluid made from pig urine?

Urea is an organic compound produced when a body metabolizes protein. (And yes, we expel it as urine.) But despite DEF earning the nickname “pig urine,” Diesel Exhaust Fluid is actually made of commercial-grade urea—synthetic ammonia and carbon.
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Why is DEF so expensive?

Because of its high content with urea, and the higher quality of urea it takes to manufacture DEF, the prices of urea most often drive the cost of DEF. According to Jobbers World, the price of urea reached $442 a ton in June, up from $380 a ton in May.
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ADBLUE vs WATER, What Happens If You Use Tap Water Instead Of ADBLUE??



Can you just put water in your DEF tank?

The DEF will be diluted by the added water, but depending on the ratio of water to DEF, the solution may still contain enough urea to deal with the NOX via an increase in the injection rate.
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Can you make DEF from urine?

Some rumors say that cow or bat urine is used to make DEF. This is, to be blunt, absolutely not true. DEF, as stated before, contains only urea and deionized water. Urine, whether human or animal, contains far more than just water and urea.
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What happens if you put diesel fuel in a DEF tank?

However, a small number of cases have been reported where diesel has been put in the DEF tank. Diesel is less dense than DEF and will float on top of the DEF in the tank, but even small amounts of diesel can damage your SCR system and we recommend that you contact your dealer immediately and do not drive the vehicle.
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Is there a shortage of DEF in USA?

A worldwide shortage of the primary ingredient in DEF, urea, is looming. And while this may not sound like a big deal, it could have a significant impact on the RV industry. If American RVers can't get their hands on DEF, they may not be able to hit the open road.
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Can you bypass DEF fluid?

If you're thinking of bypassing any of your diesel's emission controls, remember that that it's highly illegal and the fines can be steep. The chances of getting caught may be low, but the consequences are costly.
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Why is DEF hard to find?

The liquid is sprayed into the exhaust system of diesel vehicles to convert harmful emissions into nitrogen and water. Severe shortages of DEF due to reduced production in China have been reported in South Korea, causing mounting concerns in the transportation and logistics sectors.
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How is DEF manufactured?

Our DEF is produced from a solution of high-purity, virgin urea. Urea is produced synthetically from ammonia and CO₂ (carbon dioxide), from which Yara's DEF is extracted directly as "hot melt" urea, which uses a different process from fertilizer grade urea.
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How can I make DEF?

DEF is a mixture of (typically) 2/3 deionized water and 1/3 urea. It's carefully regulated by the American Petroleum Institute. Technically, urea is derived from one of the byproducts of urine. But it's synthetically made, so no cats are ever harmed in the production of the fluid.
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Does exhaust brake use more DEF fluid?

Using an exhaust brake does not directly use more fuel, but it does indirectly. When you use an exhaust brake, the exhaust is blocked and builds up in the engine. This slows the vehicle but also cools the glow plugs in a diesel engine.
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Can you roll coal with DEF?

No matter how modified a gasoline engine is, it isn't going to work. The smoke is the result of unburned fuel particles, and only diesel will do. Gasoline isn't dark or thick or offensive enough. But not just any diesel truck can roll coal.
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Does DEF freeze?

Diesel Exhaust Fluid or DEF Fluid

Whether in storage tanks or in equipment, DEF can freeze and possibly cause issues. As temperatures drop below 12°F, DEF will begin to solidify and not work as intended.
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Can I put DEF in a gas can?

If DEF is accidentally put into the fuel tank, you MUST call for service immediately! Do NOT start the engine. The truck should be looked at immediately by a certified mechanic if you believe DEF has been added to the fuel tank. Starting the engine could result in MAJOR repair costs.
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Is fertilizer A DEF?

Diesel Exhaust Fluid, DEF, is a mixture of urea at 32.5% and deionized water at 67.5%. It is used in vehicles with heavy duty diesel engines to control NOx emissions.
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Is DEF fluid cow pee?

Diesel exhaust fluid sold in stores and at semi-truck pumps at truck stops in the U.S. does not contain urea derived from cows, bats, or any other animal's urine, and to be clear, diesel owners should under no circumstances urinate in their DEF tanks.
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Will a diesel truck run without DEF?

If you ignore the DEF warning the truck will cease to work. Some diesel engine manufacturers allow the engine to go into reduced power mode so the truck can “limp home” or limit the number of times you can turn the engine over. At some point though the diesel engine will not start.
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What is shelf life of DEF fluid?

Because it doesn't include any preservatives, DEF does come with a shelf life. The good news is, it's a fairly long shelf life; DEF can usually be stored up to one year without any issues.
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What happens if I run out of DEF?

The Cost of Running Out of DEF‍

In a best-case scenario, running out of DEF simply means refilling the tank and restarting your machine. If you have DEF nearby, you could be back to work within minutes. But sometimes it isn't so quick and easy.
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Can I make my own AdBlue?

It can only be produced industrially. Making AdBlue® yourself may have adverse repercussions on your vehicle. the first involves dissolving granules of solid urea, called prills in demineralised water; the second involves mixing synthetic urea with demineralised water.
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