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Diesel Exhaust Fluid

Diesel Exhaust Fluid (DEF) keeps your diesel engines running efficiently and meeting emissions standards. DEF is an essential fluid for reducing harmful nitrogen oxide emissions from diesel vehicles, ensuring both environmental compliance and optimal engine performance. Whether you're maintaining a fleet or managing a single vehicle, our DEF products are designed to support clean and efficient operations, helping you stay on the road longer and cleaner. Explore our range of reliable DEF options and find the perfect match and volume for your needs.

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Full Pallet

80 Count BlueDEF Platinum Diesel Exhaust Fluid Full Pallet 2.5 Gallon Boxes

Old World Industries
$1,359.20 - $1,359.20
$1,359.20
$1,488.99
$1,488.99 - $1,488.99
$1,488.99

Palletized and shrink wrapped to arrive to your dock or door safely. LTL and optional Liftgate delivery. BlueDEF PLATINUM® with Advanced SYSTEM SH...

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$1,359.20 - $1,359.20
$1,359.20
$1,488.99
$1,488.99 - $1,488.99
$1,488.99
Full Pallet
1/2 Pallet

40 Count BlueDEF Platinum Diesel Exhaust Fluid Half Pallet 2.5 Gallon Boxes

Old World Industries
$679.60 - $679.60
$679.60
$744.99
$744.99 - $744.99
$744.99

Palletized and shrink wrapped to arrive to your dock or door safely. LTL and optional Liftgate delivery. BlueDEF PLATINUM® with Advanced SYSTEM SH...

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$679.60 - $679.60
$679.60
$744.99
$744.99 - $744.99
$744.99
1/2 Pallet
1/2 Pallet Save 17% Save %

BlueDEF Diesel Exhaust Fluid 1/2 Pallet 40x 2.5 Gallon Boxes

Old World Industries
$679.60
$679.60 - $679.60
$679.60
$566.99
$566.99 - $566.99
$566.99

Palletized and shrink wrapped to arrive to your dock or door safely. LTL and optional Liftgate delivery. Diesel exhaust fluid is one of the key el...

View full details
$679.60
$679.60 - $679.60
$679.60
$566.99
$566.99 - $566.99
$566.99
1/2 Pallet Save 17% Save %
BlueDef DEG001 Platimum Drum 1 Drum Save 48% Save %

BlueDEF PLATINUM Diesel Exhaust Fluid - 55 Gallon

Old World Industries
$579.99
$579.99 - $579.99
$579.99
$299.99
$299.99 - $299.99
$299.99

BlueDEF PLATINUM® with Advanced SYSTEM SHIELD™ Technology is a groundbreaking premium Diesel Exhaust Fluid with a proprietary formula to tackle de...

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$579.99
$579.99 - $579.99
$579.99
$299.99
$299.99 - $299.99
$299.99
1 Drum Save 48% Save %
BlueDef001Drum
1 Drum Save 42% Save %

BlueDEF Diesel Exhaust Fluid - 55 Gal Drum

Old World Industries
$344.00
$344.00 - $344.00
$344.00
$199.99
$199.99 - $199.99
$199.99

Diesel exhaust fluid is one of the key elements of the Selective Catalytic Reduction (SCR) process used by most medium and heavy-duty engine build...

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$344.00
$344.00 - $344.00
$344.00
$199.99
$199.99 - $199.99
$199.99
1 Drum Save 42% Save %
Full Pallet Save 17% Save %

BlueDEF Diesel Exhaust Fluid Full Pallet 80x 2.5 Gallon Boxes

Old World Industries
$1,359.20
$1,359.20 - $1,359.20
$1,359.20
$1,133.98
$1,133.98 - $1,133.98
$1,133.98

Palletized and shrink wrapped to arrive to your dock or door safely. LTL and optional Liftgate delivery. Diesel exhaust fluid is one of the key el...

View full details
$1,359.20
$1,359.20 - $1,359.20
$1,359.20
$1,133.98
$1,133.98 - $1,133.98
$1,133.98
Full Pallet Save 17% Save %
24 Cans Save 14% Save %

24 Count Royal Purple Max-Tane Total Diesel Fuel Performance 20 oz. Cans

Royal Purple
$347.76
$347.76 - $347.76
$347.76
$297.99
$297.99 - $297.99
$297.99

24 Count Multipack Royal Purple® Max-Tane® Total Diesel Fuel Performance 20 oz. Cans Royal Purple Max-Tane is formulated for year- round use in all...

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$347.76
$347.76 - $347.76
$347.76
$297.99
$297.99 - $297.99
$297.99
24 Cans Save 14% Save %
1 Drum

KleenDEF Diesel Exhaust Fluid - 55 Gallon

Old World Industries
$199.99 - $199.99
$199.99
$199.99
$199.99 - $199.99
$199.99

KleenDEF Diesel Exhaust Fluid is a mixture of 32.5% high purity synthetic urea and 67.5% deionized water that is used in Selective Catalytic Redu...

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$199.99 - $199.99
$199.99
$199.99
$199.99 - $199.99
$199.99
1 Drum
330 Gallon Tote
330 Gal. Tote

KleenDEF Diesel Exhaust Fluid - 330 Gallon

Old World Industries
$1,279.99 - $1,279.99
$1,279.99
$1,279.99
$1,279.99 - $1,279.99
$1,279.99

KleenDEF Diesel Exhaust Fluid is a mixture of 32.5% high purity synthetic urea and 67.5% deionized water that is used in Selective Catalytic Redu...

View full details
$1,279.99 - $1,279.99
$1,279.99
$1,279.99
$1,279.99 - $1,279.99
$1,279.99
330 Gal. Tote
330 Gallons
330 Gal. Tote

BlueDEF Diesel Exhaust Fluid - 330 Gallon

Old World Industries
$1,001.00 - $1,001.00
$1,001.00
$1,379.99
$1,379.99 - $1,379.99
$1,379.99

BlueDEF® Diesel Exhaust Fluid is a mixture of high purity synthetic urea and deionized water that is used in Selective Catalytic Reduction (SCR) s...

View full details
$1,001.00 - $1,001.00
$1,001.00
$1,379.99
$1,379.99 - $1,379.99
$1,379.99
330 Gal. Tote
1 Drum Save 33% Save %

BlueDEF PLATINUM Diesel Exhaust Fluid - 330 Gallon

Old World Industries
$3,137.20
$3,137.20 - $3,137.20
$3,137.20
$2,109.99
$2,109.99 - $2,109.99
$2,109.99

BlueDEF PLATINUM® with Advanced SYSTEM SHIELD™ Technology is a groundbreaking premium Diesel Exhaust Fluid with a proprietary formula to tackle de...

View full details
$3,137.20
$3,137.20 - $3,137.20
$3,137.20
$2,109.99
$2,109.99 - $2,109.99
$2,109.99
1 Drum Save 33% Save %
275 Gallon Tote
275 Gal. Tote

BlueDEF Diesel Exhaust Fluid - 275 Gallon

Old World Industries
$949.00 - $949.00
$949.00
$1,179.99
$1,179.99 - $1,179.99
$1,179.99

BlueDEF® Diesel Exhaust Fluid is a mixture of high purity synthetic urea and deionized water that is used in Selective Catalytic Reduction (SCR) s...

View full details
$949.00 - $949.00
$949.00
$1,179.99
$1,179.99 - $1,179.99
$1,179.99
275 Gal. Tote
275 Gal. Tote

KleenDEF Diesel Exhaust Fluid - 275 Gallon

Old World Industries
$1,129.99 - $1,129.99
$1,129.99
$1,129.99
$1,129.99 - $1,129.99
$1,129.99

KleenDEF Diesel Exhaust Fluid is a mixture of 32.5% high purity synthetic urea and 67.5% deionized water that is used in Selective Catalytic Redu...

View full details
$1,129.99 - $1,129.99
$1,129.99
$1,129.99
$1,129.99 - $1,129.99
$1,129.99
275 Gal. Tote
LTL, Freight, and Parcel shipping

Available to US desinations

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1 (888) 898-6867

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DEF Common questions

What is DEF?

DEF is a clear, non-toxic, non-flammable liquid that's injected into the exhaust stream of a diesel engine. It's stored in a separate tank, usually located next to the diesel tank.

Diesel Exhaust Fluid (DEF) is a precise mixture of urea and de-ionized water that is used in the SCR process. DEF is 32.5% urea and 67.5% de-ionized water, this mixture is very precise when blended.

Is DEF considered hazardous?

No, DEF is less hazardous than other fluids used in a truck, like diesel, brake fluid, and antifreeze. It's biodegradable and can be transported without a hazardous substance placard.

How do I store DEF and how long does it last?

Store DEF in a cool, dry, well-ventilated area in a container designed for DEF. Avoid storing it outdoors or in containers made of carbon steel, aluminum, copper, or zinc.

DEF can last at least one year if stored between 10° and 90° Fahrenheit. Storing it at 75° Fahrenheit can extend its shelf life to two years.