How Do I Tell If DEF Is Contaminated?
DEF can be contaminated easily, so it usually isn't difficult to tell if your supply is at risk. Contamination usually occurs through exposure to outside air and water or particulate matter, so if there are any cracks or weaknesses in the fluid's packaging, storage tanks or dispensing equipment, odds are that the DEF contained within is at risk.
Contamination can also occur during the manufacturing and packaging process. Usually, contamination causes the fluid to change color, so you should test before you use any DEF that changes in hue. For a comprehensive test, you can send the fluid to a laboratory, where professionals will evaluate it for various contaminants. You can also dip test strips in the DEF; if the color of the strips changes, the DEF has been contaminated with oil.
What Do I Do If I Discover I Have Been Using Contaminated DEF?
You will have to drain the DEF tank, clean it thoroughly with deionized water, and perform a system flush with deionized water to make sure that contaminated DEF has been completely removed. Impure DEF can clog your DEF injector and damage expensive components within the SCR systems. If this happens, your SCR system will be seriously damaged, and damage most likely will not be covered under your warranty. Storage containers that have held contaminated DEF must be cleaned in a similar manner or replaced to prevent them from contaminating future supplies.
Once you have cleaned out the DEF tank and the SCR system on the affected unit, dispose of the contaminated DEF. The rules for DEF disposal vary by state and city. In some jurisdictions, you can just pour it into the sewer, while others require you to hand it over to competent waste-treatment professionals. If any of your DEF has spilled on the ground, absorb it with an inert, dry material such as sand and then place it in an approved waste disposal container. If you get the fluid on your hands during disposal, immediately wash yourself with soap and water.
Innovative Fueling Solutions sells affordable DEF storage and dispensing equipment that is guaranteed to protect the fluid from contamination. For more information, contact us today.