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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. See our blog post here to better understa...

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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. See our blog post here to better understa...

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BlueDef001Drum 1 Drum

BlueDEF Diesel Exhaust Fluid - 55 Gal Drum

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

See our blog post here to better understand LTL shipping and hazmat surcharges. Diesel exhaust fluid is one of the key elements of the Selective C...

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1/2 Pallet

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

Old World Industries
$559.60 - $559.60
$559.60
$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. See our blog post here to better understa...

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BlueDef DEG001 Platimum Drum
1 Drum Save 6% Save %

BlueDEF PLATINUM Diesel Exhaust Fluid - 55 Gallon

Old World Industries
$299.99
$299.99 - $299.99
$299.99
$281.99
$281.99 - $281.99
$281.99

See our blog post here to better understand LTL shipping and hazmat surcharges. BlueDEF PLATINUM® with Advanced SYSTEM SHIELD™ Technology is a gro...

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Full Pallet

BlueDEF Diesel Exhaust Fluid Full Pallet 80x 2.5 Gallon Boxes

Old World Industries
$1,119.20 - $1,119.20
$1,119.20
$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. See our blog post here to better understa...

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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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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...

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1 Drum Save 25% Save %

BlueDEF PLATINUM Diesel Exhaust Fluid - 330 Gallon

Old World Industries
$2,109.99
$2,109.99 - $2,109.99
$2,109.99
$1,580.99
$1,580.99 - $1,580.99
$1,580.99

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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2 Sizes Save up to 24% Save %

RL-2 Diesel Additive - Choose Size

Red Line Oil
$1,149.84 - $1,967.84
$1,149.84 - $1,967.84
$1,149.84
$880.99 - $1,495.99
$880.99 - $1,495.99
$880.99

Red Line® RL-2 Diesel Ignition Improver is formulated for injectors, pumps, and rings - providing both a cleaning treatment and lubrication as part...

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72 Bottles Save 34% Save %

72 Count 85+ Diesel Fuel Additive for Winter 12 oz. Bottles

Red Line Oil
$912.96
$912.96 - $912.96
$912.96
$606.99
$606.99 - $606.99
$606.99

72 Count MultipackRed Line® 85 Plus Diesel Fuel Catalyst is designed for use in all diesel engines. This specialized formula compensates for latest...

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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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275 Gallon Tote
275 Gal. Tote

BlueDEF Diesel Exhaust Fluid - 275 Gallon

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

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330 Gallons
330 Gal. Tote Save 12% Save %

BlueDEF Diesel Exhaust Fluid - 330 Gallon

Old World Industries
$1,379.99
$1,379.99 - $1,379.99
$1,379.99
$1,214.39
$1,214.39 - $1,214.39
$1,214.39

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

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2 Sizes Save up to 32% Save %

85 Plus Diesel Fuel Additive - Choose Size

Red Line Oil
$925.92 - $1,967.84
$925.92 - $1,967.84
$925.92
$602.99 - $1,339.99
$602.99 - $1,339.99
$602.99

Red Line® 85 Plus Diesel Fuel Catalyst is designed for use in all diesel engines. This specialized formula compensates for latest low-sulfur fuels ...

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72 Bottles Save 26% Save %

72 Count Anti-Gel Diesel Fuel Additive for Winter 15 oz. Bottles

Red Line Oil
$976.32
$976.32 - $976.32
$976.32
$725.99
$725.99 - $725.99
$725.99

72 Count MultipackRed Line® RL Anti Gel Diesel Fuel Additive is available in different levels of concentration and provides the detergency, lubrica...

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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...

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BlueDef001Drum
1 Drum Save 2% Save %

BlueDEF Diesel Exhaust Fluid - 55 Gal Drum - Free Shipping with the Purchase of 2

Old World Industries
$275.48
$275.48 - $275.48
$275.48
$269.99
$269.99 - $269.99
$269.99

 BlueDEF Diesel Exhaust Fluid - 55 Gal Drum Special Clearance Offer - Get Free Shipping with the Purchase of 2 or more Drums! Diesel exhaust fluid...

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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.

Special offer from BULK55
Free Shipping on BlueDEF 55 Gallons
When you buy 2 or more drums
Shipping price: $299.00FREE
ADD 2 TO CART Product detail
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