What Is The Best Diesel Exhaust Fluid For EcoDiesel? [And When To Add It]

Like any diesel, the EcoDiesel needs diesel exhaust fluid (DEF) to help reduce emissions. But what is the best diesel exhaust fluid for the EcoDiesel, and when should you add it? Let's take a look below.

For the EcoDiesel, it's best to use a diesel exhaust fluid that's certified to meet the ISO 22241 standard. You can find DEF that meets this standard at most auto parts stores or from a dealer. Like your gas gauge, add DEF when the gauge on your dash says it's time.

Without diesel exhaust fluid, the EcoDiesel would produce more emissions and wouldn't run as efficiently. In this article, we will discuss what type of diesel exhaust fluid to add to your EcoDiesel and when to add it. In addition, we will answer other frequently asked questions about DEF, so read on!

Pumping gasoline fuel in car. - What Is The Best Diesel Exhaust Fluid For EcoDiesel? [And When To Add It]


What Brand Diesel Exhaust Fluid Should You Add To An EcoDiesel?

Since 2010, diesel exhaust fluid has been required in all new vehicles with diesel engines in order to meet emissions standards. Diesel exhaust fluid is a urea-based solution that helps to break down NOx emissions from the engine, reducing them by up to 90%.

The EcoDiesel is no different and needs diesel exhaust fluid to run efficiently and meet emissions standards. The best diesel exhaust fluid to add to your EcoDiesel is one that meets the ISO 22241 standard.

close up worker hand holding nozzle fuel fill oil into car tank at pump gas station, saving money and energy for transport, transportation technology, industry business, vintage tone

While there are several brands on the market, they all need to meet the same standard in order to work properly. That said, it's best to get a diesel exhaust fluid recommendation from your local Jeep or Ram dealer.

If you don't get it from the dealer, make sure the diesel exhaust fluid is fresh. There will be a date on the container, and it's best to use it before that date.

You can find diesel exhaust fluid at most auto parts stores or from a Ram dealer. It's important to only use DEF that meets the ISO 22241 standard.

You should also avoid buying diesel exhaust fluids from flyers or online ads. These may be counterfeit products that don't work as well or could damage your engine.

The EcoDiesel has a gauge that tells you the level of DEF. Add DEF when the gauge says it's time. Typically you should do this before 1/4 tank to avoid running out and damaging your engine.

Having an extra jug of DEF on hand is a good idea, especially if you're going on a long trip.

Seoul, South Korea - Jan 2021 : Adblue diesel exhaust fluid DEF and diesel fuel tank cap.

What Happens If You Don't Use Diesel Exhaust Fluid?

If you don't use diesel exhaust fluid, the EcoDiesel would produce more emissions and wouldn't run as efficiently. It's even possible that the vehicle won't start at all. You could also potentially be looking at expensive repairs.

Not using diesel exhaust fluid is one of the quickest ways to damage your Ram EcoDiesel. Like your oil, pay attention to the diesel exhaust fluid level and add more when it gets low.

How Do You Add Diesel Exhaust Fluid In An EcoDiesel?

Adding diesel exhaust fluid to your EcoDiesel is easy. Most containers come with a spout that you can insert directly into the fill port.

The fill port is usually located next to the gas cap, and it will have a picture of a urea container next to it. Once the spout is inserted, open the container and let it flow into the fill port until it's full.

The EcoDiesel holds 5-8 gallons of DEF, so you may need to buy multiple containers to top it off.

It's important not to overfill the DEF tank. If you do, some of the fluid can spill out and damage your paint or cause corrosion.

Can You Remove A DEF System?

Diesel exhaust fluid or DEF sign posted in a truck stop, next to fuel pump

While it's possible to remove the DEF system from your EcoDiesel, we don't recommend it. It is illegal in many states, and it will void your warranty.

It's also important to remember that the DEF system is there to help reduce emissions. Removing it means that your vehicle will produce more emissions, which is bad for the environment.

While you may not get caught, it's not worth the risk. We recommend that you keep the DEF system in your vehicle and add DEF when needed.

Plus, it may cost you more in the long run if you have to pay for repairs.

What If You Put DEF In Your Gas Tank?

If you accidentally put DEF in your gas tank, don't start the vehicle. The best thing to do is to have it towed to a nearby service station or Ram dealer.

DEF can damage your engine if it gets into the fuel system. It's important to get it fixed as soon as possible so that you don't cause any more damage.

Putting DEF in your gas tank is an easy mistake to make. Be careful when you're filling up your vehicle, and double-check that you're putting the right fluid in the right tank.

What Is The Shelf Life Of Diesel Exhaust Fluid?

Unopened containers of DEF have a shelf life of two years. However, this shelf life is only when the diesel exhaust fluid is stored properly.

You should store DEF in a cool, dry place out of direct sunlight. It's also important to keep the containers sealed so that the fluid doesn't evaporate.

Ideally, under 68 degrees Fahrenheit is the best temperature to store DEF. Also, diesel exhaust fluid will freeze at temperatures around 12 degrees Fahrenheit.

So, don't leave it outdoors, whether it's hot or cold outside. DEF should be stored where temperatures can be controlled.

Close up mans hand opening a tank for Ad Blue fluid of a blue car. Diesel exhaust fluid or DEF for reduction of air pollution, October 2020, Prague, Czech Republic

How Long Does Diesel Exhaust Fluid Last In A Truck?

If you are planning to store your EcoDiesel or you don't drive it often, you should add a stabilizer to the DEF. This will help it last longer.

DEF typically has a lifespan of 12 months when used in a truck. However, this can vary depending on how often you drive and the temperature outside.

If the diesel exhaust fluid has been in the tank longer than 12 months, it's a good idea to have it drained. Then, you can add fresh DEF to the tank.

It's important to keep track of how long the DEF has been in your vehicle. This will help you avoid any problems down the road.

Can You Mix Different Brands Of Diesel Exhaust Fluid?

As we mentioned earlier, it's important to use high-quality DEF in your EcoDiesel. So, as long as it's a certified diesel exhaust fluid dealer, you can mix brands.

So, if you are running low but don't have the same brand, you can mix it. Just ensure you are buying the freshest fluid available. This way, you know that your DEF is still good and won't cause any problems with your vehicle.

Can Diesel Exhaust Fluid Freeze While Driving?

Believe it or not, yes, DEF can freeze while you're driving. This usually happens when the outside temperature is very cold and the DEF tank is low.

If you are driving in temperatures under 12 degrees Fahrenheit, the DEF can start to freeze. When this happens, a small amount of urea can crystalize and block the nozzle.

In addition, you should leave room in the DEF tank. If you leave the DEF tank full while driving in freezing temperatures, the fluid can expand and crack the tank.

It's important to be aware of this so that you can avoid any problems while you're driving. This also goes for when your diesel vehicle is sitting.

If you're not going to be driving for a while, it's best to park it in a garage or somewhere where the temperature won't drop below freezing.

Woman filling a diesel engine ad blue fluid from canister. Diesel exhaust fluid for reduction of air pollution.

What Should You Do If Your DEF Tank Is Empty?

If your DEF tank is empty and the light is on, don't panic. The first thing you should do is turn off the engine.

Leaving the engine running will continue to pump DEF into the system, which can cause damage. So, it's important to turn it off as soon as possible.

Once the engine is off, you need to call a tow truck and have it towed to a nearby service station. They will be able to help you out and get you back on the road.

You can also call for roadside assistance if you have it. This way, you won't have to worry about paying for the tow truck.

Final Thoughts

Overall, as long as you are buying a high-quality diesel exhaust fluid brand and storing it properly, your EcoDeisel will run fine. Just remember to watch the DEF tank level and add more when needed.

Made it to the end? Here are other articles you might enjoy:

Does DEF Go Bad? [Inc. If Frozen]

When To Add DEF [And How To]

Diesel Exhaust Fluid Dosing Malfunction – What Could Be Wrong?

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