Diesel exhaust fluid (DEF) is required for new large-displacement, off-road diesel engines in order to comply with EPA standards for nitrogen oxide (NOx) emissions. The DEF basically works with a process called selective catalytic reduction to turn harmful exhaust into water and nitrogen, which helps reduce smog. You may be concerned that DEF may be hard to obtain or use; fortunately, DEF manufacturers and DEF distributors have made it easy for you to obtain and use DEF. Here are some things you should know.

Purchasing DEF

You can purchase DEF in a similar manner of purchasing gasoline or you can buy it in smaller one or two gallon containers, depending on what your intended use is. For example, it’s easier to fill the DEF reservoir of a long haul truck at a truck stop with a pump dispenser. On the other hand, if you just need DEF for automotive purposes, your best option may be a smaller container that you can purchase at an auto parts store or gas station. You can also purchase large totes or drums containing 55-300 gallons of DEF if you intend to use it in a heavy equipment shop.

Dispensing DEF

Most DEF is dispensed with a hand pump or a pump powered by air or electricity. DEF pumps aren’t exactly the same as fuel pumps because generic pumps like a fuel pump have rubber and aluminum components. However, neither of these components can be used with DEF because that would contaminate the fluid and keep the catalyst from working properly. Instead, a peroxide-cured EPDM tube and stainless steel couplings are used because neither of these components will corrode and contaminate the fluid.

Handling and Storing DEF

It’s important to dispense DEF properly to avoid contamination, but handling it properly is also important for the same reason. Don’t use funnels that have also been used for oil or other liquids. Fortunately, DEF isn’t a dangerous substance to handle, but if you do get some on the skin you can wash it off with soap and water. If you have DEF you need to store, keep it out of direct sunlight and prevent freezing. Contact Blue Sky Diesel Exhaust Fluid today to learn more.