Tips on refractometer use
Wait until fluid and tool temperature are stabilized at ambient temperature before taking a reading.
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.
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
6200 Grand Pointe Dr., PO Box 6020, Grand Blanc, MI 48439, (800) ACDelco (223-3526)
BRENNTAG NORTH AMERICA (TerraCair Ultrapure DEF)
5083 Pottsville Pike, Reading, PA 19605, (877) 363-5843
KRUSE NORTH AMERICA (BlueSky/AdBlue DEF)
3511 Silverside Rd., Suite 203, Wilmington, DE 19810, (877) 221-7335
16800 Executive Plaza Dr., Dearborn, MI 48126
Old World Industries, 4065 Commercial Ave., Northbrook, IL 60062-1851, (877) 845-0333
VALVOLINE (Airshield DEF)
3499 Blazer Pkwy., Lexington, KY 40509, (859) 357-7777
3401 Virginia Rd., Cleveland, OH 44122, (216) 831-1000
Models: DEF-201 & DEF-202
OTC/ BOSCH AUTOMOTIVE SERVICE SOLUTIONS
655 Eisenhower Dr., Owatonna, MN 55060, (800) 533-6127
Model: OTC 5025 DEF Refractometer
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