BlueDEF® Diesel Exhaust Fluid

PEAK® BlueDEF® is a mixture of 32.5% high purity synthetic urea and 67.5% deionized water that is used in Selective Catalytic Reduction (SCR) systems on diesel engines. DEF is the primary ingredient used to help convert NOx to harmless nitrogen and water. BlueDEF® is stable, colorless, non-flammable, and is classified as minimum risk for transportation. BlueDEF® conforms to the ISO-22241-1 specification for DEF, is API registered and meets or exceeds OEM specifications.

PEAK® BlueDEF®’s exclusive TRIPLE-FILTERED formula ensures the highest product purity. Every batch is guaranteed pure.

• PEAK® BlueDEF®'s exclusive TRIPLE-FILTERED formula ensures the highest product purity
• America's #1 brand of Diesel Exhaust Fluid
• Purity Guarantee is our assurance the DEF you are purchasing has been tested to meet or exceed the strictest OEM standards
• Conforms to the ISO-22241-1 specification for DEF, and is an American Petroleum Institute (API) certified diesel exhaust fluid
• Compatible with all diesel SCR systems
• Non-flammable formula makes handling safe and easy