Tech Stuff

Diesel exhaust fluid: Fluid-injection for NOx reduction

The DEF fill point for GMC and Chevy light trucks is located underhood adjacent to the passenger-side firewall.
<p>The DEF fill point for GMC and Chevy light trucks is located underhood adjacent to the passenger-side firewall.</p>

Tips on refractometer use

Wait until fluid and tool temperature are stabilized at ambient temperature before taking a reading.

Storing DEF

Storage temperatures need to be held at between 12 degrees F and 86 degrees F. According to sources, this maintains optimal shelf life for up to two years. If DEF is allowed to freeze, once thawed, its efficiency returns to normal. Prolonged storage above 86 degrees F will cause hydrolysis to occur, reducing shelf life.

Availability

DEF is available in a variety of volumes, including one-gallon containers, 2.5-gallon containers, 55-gallon drums and 275-gallon totes.

DEF is also available at the pump, primarily at truck stops and diesel repair facilities. As time progresses, we’ll see more at-the-pump DEF availability.

Our understanding at this time is that DEF is sold in North America as DEF, Peak’s BlueDef, Valvoline’s Airshield, C-Blue, TerraCair and Air1.

The use of DEF is here to stay, with the number of applications increasing at a very steady rate.

If your shop services diesel engine-equipped vehicles, model year 2010 and newer, you’ll need to stock DEF, and you need to understand the need for storage and transfer cleanliness.

We offer this brief article as a primer on SCR systems and the use of DEF. So, the next time a customer asks for “muffler juice,” you’ll know what he’s talking about. ●

SUPPLIERS OF DEF

ACDELCO

6200 Grand Pointe Dr., PO Box 6020, Grand Blanc, MI 48439, (800) ACDelco (223-3526)

www.acdelco.com

BRENNTAG NORTH AMERICA (TerraCair Ultrapure DEF)

5083 Pottsville Pike, Reading, PA 19605, (877) 363-5843

www.brenntagdef.com

KRUSE NORTH AMERICA (BlueSky/AdBlue DEF)

3511 Silverside Rd., Suite 203, Wilmington, DE 19810, (877) 221-7335

www.krusena.com

MOTORCRAFT

16800 Executive Plaza Dr., Dearborn, MI 48126

www.fordparts.com

PEAK (BlueDEF)

Old World Industries, 4065 Commercial Ave., Northbrook, IL 60062-1851, (877) 845-0333

www.BlueDEF.com

VALVOLINE (Airshield DEF)

3499 Blazer Pkwy., Lexington, KY 40509, (859) 357-7777

www.valvoline.com

DEF REFRACTOMETERS

MISCO U.S.

3401 Virginia Rd., Cleveland, OH 44122, (216) 831-1000

www.misco.com

Models: DEF-201 & DEF-202

OTC/ BOSCH AUTOMOTIVE SERVICE SOLUTIONS

655 Eisenhower Dr., Owatonna, MN 55060, (800) 533-6127

www.otctools.com

Model: OTC 5025 DEF Refractometer

Tags: ACDelco  OTC 
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