Top AdBlue Brands: Keeping Your Diesel Engines Clean and Compliant

As environmental consciousness continues to grow, many vehicle owners are opting for AdBlue, a crucial component that helps reduce emissions in diesel engines. The market is flooded with a variety of AdBlue brands, each boasting unique features and quality standards. In this article, we will explore a curated list of the best brands offering AdBlue, ensuring you make an informed decision when it comes to purchasing this solution. Stay tuned to discover which brands stand out for their reliability, efficiency, and value.

Illustration of adblue

Best brands of adblue in 2025

AdBlue by BASF

BASF, a leading chemical company established in 1865, is a major producer of AdBlue, a 32.5% high-purity urea solution that is essential for reducing harmful nitrogen oxide emissions from diesel engines, meeting Euro IV, V, and VI standards. They offer a ZeroPCF variant with a certified carbon footprint of less than 0.05 kg per kilogram of AdBlue, and ensure a reliable supply through optimized production processes. This positions them as a top player with a significant market share in the AdBlue industry.

DEF by Peak

Peak's BlueDEF, a leading brand in the US, provides a high-quality diesel exhaust fluid, consisting of 32.5% urea and 67.5% deionized water, that meets the ISO 22241-1 standards and is API certified, ensuring optimal performance in SCR systems for reducing NOx emissions, with many users reporting success for over 200,000 miles; their product also comes with a purity guarantee, as every batch is tested to meet or exceed OEM standards, making it a reliable choice for diesel vehicle owners seeking effective emission control.

Air1 by Yara

Air1, by Yara, a leading global urea producer since 1905, is a top-tier AdBlue supplier, ensuring high purity and a secure supply chain with its own production plants, including the world's largest in Sluiskil. Air1's AdBlue is a 32.5% urea solution, produced from a prime urea solution that has unmatched purity and is extracted through a dedicated process. Yara's Air1 has been in the AdBlue market since its beginning in 2005, providing a quality product with full control from manufacturing to delivery. They offer a comprehensive distribution network through their terminals and partners, including a UK storage capacity of 15 million liters in 2018.

BlueDEF by Old World Industries

BlueDEF by Old World Industries, a leading brand in North America, provides a high-purity 32.5% urea solution that meets ISO 22241 standards, is API registered, and is essential for reducing harmful NOx emissions in diesel engines using SCR systems. Recognized as America's #1 DEF brand, the company boasts a 50-year history of product development. Old World Industries also offers BlueDEF Platinum, an advanced formula designed to minimize deposits in SCR systems. They are a key player in the competitive diesel exhaust fluid market, projected to reach $74 billion by 2032 with an 8% CAGR. Additionally, the company has received accolades like the 2023 AutoZone Extra Miler Award.

GreenChem AdBlue

GreenChem, established in 2003, stands as a leading European AdBlue producer and distributor, with over 50 production facilities in Europe and Brazil and a significant market presence, delivering more than 814 million liters of AdBlue in 2022 alone; as part of Agrofert Holding, GreenChem provides complete solutions, from packed products to tank systems, and has been chosen by many vehicle manufacturers as their sole AdBlue supplier, ensuring high quality, ISO 22241 compliant AdBlue that reduces harmful emissions and meets the latest emission standards. With a 32.5% urea solution, GreenChem's AdBlue is a non-toxic solution that transforms harmful nitrogen oxide into harmless water vapor and nitrogen. You can find more information about their products on their website.

Certified DEF by Valvoline

Valvoline's Certified DEF, also known as AdBlue, is a high-quality solution with a 32.5% urea concentration, created using purified urea and demineralized water. It is compliant with ISO 22241 standards and is designed for Selective Catalytic Reduction systems to reduce nitrogen oxide emissions in diesel engines, having a shelf life of two years when stored below 25°C. You can find more details at Valvoline's Official Website.

Fleetguard by Cummins

Fleetguard, a brand by Cummins, is a leading manufacturer of AdBlue, also known as Diesel Exhaust Fluid (DEF), which is a 32.5% urea solution in deionized water, essential for Selective Catalytic Reduction (SCR) systems in diesel engines to reduce harmful emissions. Fleetguard's AdBlue meets the stringent ISO 22241-1 standards, ensuring high purity and quality, and its production facility was the first outside of Europe to be accredited by the VDA in November 2010, solidifying its position as a trusted supplier. This DEF is non-toxic, non-polluting, non-flammable, stable, and colorless. Fleetguard is also a global supplier for original equipment manufacturers and the replacement services market, and its AdBlue consumption is expected to be approximately 2%-6% of fuel consumption. It is formulated for SCR protection, reducing component wear and extending catalyst life.

BlueSky DEF

Blue Sky DEF is a leading producer of high-quality AdBlue, also known as Diesel Exhaust Fluid (DEF), which is a 32.5% urea solution in deionized water, essential for Selective Catalytic Reduction (SCR) systems in diesel vehicles to reduce harmful NOx emissions by over 80% and improve fuel efficiency by 3-8%; Blue Sky DEF is manufactured to meet stringent ISO 22241 and American Petroleum Institute (API) standards, ensuring a pure and reliable product; Since 2010, Blue Sky has been providing DEF to satisfied customers in North America and South Africa, and also offers AdBlue dispensing equipment; Blue Sky was the first to manufacture AdBlue in South Africa under Verband der Automobilindustrie e.V. license and ISO 9001/14001 certification; Using Blue Sky DEF can also provide average fuel savings of 5%.

Shell AdBlue

Shell AdBlue, a high-quality diesel exhaust fluid, is a 32.5% solution of urea in demineralized water, meeting the ISO 22241 standard, and is essential for Selective Catalytic Reduction (SCR) systems in diesel vehicles, reducing nitrogen oxide emissions by up to 80%, with typical consumption being around 4-6 liters per 100 liters of diesel fuel, and is available at many Shell stations and in 10-liter packs. The product is non-toxic, odorless, and colorless, with a freezing point of -11°C. For more information, you can visit their official website.

Houghton AdBlue

Houghton is a trusted AdBlue producer, known for its high-quality solution of 32.5% urea, meeting the ISO 22241 standards, ensuring optimal performance in Selective Catalytic Reduction (SCR) systems. This contributes to the reduction of harmful nitrogen oxide emissions from diesel engines and is available in various container sizes for diverse applications, making it a reliable choice for environmentally conscious vehicle owners and fleet operators.