Choosing the Best AdBlue for Jaguar: A Comprehensive Guide

best-adblue-for-jaguar 12 Oct 2023

If you own a Jaguar diesel car, you've likely come across AdBlue, a specialized fluid that plays a vital role in reducing harmful emissions from your engine. As environmental awareness grows, AdBlue has become an essential tool in the fight against air pollution.

But what exactly is AdBlue? How does it work within your Jaguar's engine system? And how can you choose the right AdBlue solution for your vehicle?

In this comprehensive guide, we explore how to find the best AdBlue for Jaguar, explaining the science behind AdBlue and its eco-friendly benefits. We also provide valuable insights to help you effectively maintain your AdBlue system.

What is AdBlue, and how does it work?

AdBlue, also referred to as Diesel Exhaust Fluid (DEF), AUS 32, or ARLA 32, is a solution of urea and water that gets injected into the exhaust system of diesel vehicles. Jaguar diesel vehicles starting from the 2016 Model Year are equipped with a technology called Selective Catalytic Reduction (SCR).

SCR utilizes a catalyst to convert nitrogen oxides (NOx), a harmful pollutant, into harmless nitrogen and water vapor. This process reduces emissions by up to 90%, allowing Jaguar to meet the EU6 emissions standards.

Why does Jaguar recommend Castrol Edge Professional oil?

Jaguar has had a solid and enduring partnership with Castrol, a leading manufacturer of lubricants. Together, they have collaborated on developing lubricants specifically tailored for Jaguar engines.

These specialized lubricants, known as Castrol Edge Professional, come highly recommended exclusively by Jaguar. The key feature of Castrol Edge Professional is a unique formulation enriched with TITANIUM FST. This revolutionary technology enhances the oil's film strength and reduces friction, resulting in optimal engine performance.

Furthermore, it is worth noting that Castrol Edge Professional holds the distinction of being the world's first CO2-neutral engine oil. This means that any greenhouse gas emissions produced during its manufacturing process are entirely offset by investments made towards emission reduction projects.

How to choose the best AdBlue for Jaguar?

It's important to note that not all AdBlue products are created equal. Some may have lower quality or purity, which can negatively impact the performance and reliability of your Jaguar's SCR system. To ensure that you choose the best AdBlue for Jaguar, here are some guidelines to follow:

  • Look for the ISO 22241 standard on the label. This international standard ensures that AdBlue meets specific criteria regarding concentration, purity, density, and pH levels.
  • Check the expiry date of the product. Over time, AdBlue can degrade, especially when exposed to high temperatures or sunlight. Using expired or degraded AdBlue could damage your SCR system and trigger warning lights on your dashboard.
  • It's important to purchase AdBlue from a trusted and reputable supplier. Beware of dishonest sellers who may provide counterfeit or diluted AdBlue products that do not meet the ISO 22241 standard. Using such products can potentially damage your engine and void your warranty.
  • Additionally, make sure to use only dedicated AdBlue containers and equipment. Avoid using containers or equipment that have been used for other fluids, like oil or antifreeze, as these fluids can contaminate your AdBlue and lead to issues with your Selective Catalytic Reduction (SCR) system.

How to refill your AdBlue tank?

The location of your AdBlue tank in your Jaguar depends on the specific model. For instance:

  • In the Jaguar XE, it can be found under the spare wheel in the trunk.
  • In the Jaguar XF, it is located next to the diesel filler cap.
  • In the Jaguar XJ, you'll find it behind a flap on the trunk floor.
  • In the Jaguar F-PACE, it is situated under a cover on the trunk floor.

For precise information about where to find your AdBlue tank, consult your owner's manual. A sensor within the tank keeps track of your AdBlue level. When it gets low, you will receive a series of messages on your instrument panel indicating this.

You may receive several messages regarding your AdBlue tank

The first message will prompt you to top it up, while the second message will be a warning with an amber icon advising you to refill it. The third message will indicate the remaining distance until your AdBlue tank is empty, and the final message, accompanied by a red warning icon, will inform you that no further restarts are possible until AdBlue is added.

To refill your AdBlue tank, you will require a non-drip refill bottle or a dispenser nozzle that fits your filler neck. You can purchase these items from your local Jaguar retailer or other authorized suppliers. Here are the steps to follow:

To refill your AdBlue tank, follow these simple steps:

  • Find a level surface and turn off your car engine.
  • Open the filler cap of your AdBlue tank.
  • Insert the refill bottle or dispenser nozzle into the opening.
  • Fill up the tank until you hear a clicking sound or see it's full on the bottle or nozzle indicator.
  • Close the filler cap securely and clean up any spills.
  • Start your engine and check if any warning messages have cleared from your instrument panel.
  • Refilling your AdBlue tank at least once between service intervals is recommended.
  • The average consumption of AdBlue is 500 miles (800 km) per liter, but this may vary depending on how you drive and road conditions.
  • If you have purchased a Jaguar Service Plan, you can receive a free refill from your local retailer.

How to maintain your AdBlue system?

Following a few basic maintenance tips is essential to ensure your AdBlue system remains in optimal condition.

  • First and foremost, avoid running out of AdBlue. If your AdBlue tank becomes empty, you won't be able to start your engine until you refill it with the best engine oil for Jaguar. This can be inconvenient and costly, particularly if you're far from a service station or retailer.
  • Equally important is avoiding the use of expired or contaminated AdBlue. As mentioned, such products can damage your Selective Catalytic Reduction (SCR) system and trigger warning lights on your dashboard. In some cases, replacing the SCR catalyst may be necessary, which can incur significant expenses.
  • AdBlue is not meant to be added to your diesel tank or mixed with other fluids. Doing so can cause chemical reactions that could harm your SCR system and engine.
  • It's essential to avoid exposing AdBlue to extreme temperatures, as it can freeze at -11°C and de-compose at temperatures above 30°C. If AdBlue freezes, you should wait for it to thaw before starting your engine.
  • In case of AdBlue decomposes you need to replace it with fresh AdBlue. Additionally, make sure not to store AdBlue for too long, as its effectiveness and quality may diminish after about 12 months if stored in an unsealed container or exposed to direct sunlight.


If you own a Jaguar diesel engine, using AdBlue is essential to reduce harmful emissions. AdBlue works with SCR technology, which converts NOx into harmless nitrogen and water vapor. To ensure you choose the best AdBlue for your Jaguar, look for the ISO 22241 standard, check the expiry date, buy from a reputable supplier, and use dedicated containers and equipment.

Additionally, Jaguar recommends Castrol Edge professional oil for your engine as it delivers exceptional performance, improved fuel economy, and reduced CO2 emissions. This oil is co-engineered by Castrol and Jaguar and is fortified with TITANIUM FST. Furthermore, it's worth noting that Castrol Edge Professional is the world's first certified CO2-neutral engine oil.


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