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Four Tips for Handling Ultra Low Sulfur Diesel

Closeup of a diesel fuel cap

Today's Ultra Low Sulfur Diesel (ULSD) is not the same old diesel fuel anymore. It poses a greater static-ignition hazard than earlier diesel formation with higher sulfur content. The following tips will help you better understand the risks and ensure your fueling systems are properly functioning and maintained to handle ULSD.


Tip 1: What you need to know about static electricity during refueling

ULSD removes sulfur and other compounds so diesel engines can burn cleaner with fewer emissions. But ULSD is also more likely to hold a static-electric charge, which can build up while the diesel is flowing through a fuel-delivery system. If combustible vapors are present, a static-electric spark could result in a fire or explosion.


Tip 2: Ensure proper bonding

Proper bonding means all system components are electrically conductive with an unbroken connection. That includes the fuel-supply tank, transfer pump, transfer hose, nozzle, and any other system component. A wire connection from the fuel-delivery system to the machine chassis will equalize the static electricity between the two machines, further reducing the potential of discharge.


Tip 3: Ensure proper grounding

Proper grounding means the system has an electrically conductive connection, or is grounded, to the earth, allowing dissipation of the static-electric charges.


Tip 4: Visit with your fuel or fuel-system supplier

Consult your fuel or fuel-system supplier to ensure compliance and proper grounding and bonding.


Source: Association of Equipment Manufacturers