A GMC Sierra owner accidentally filled his diesel tank with diesel exhaust fluid (DEF). DEF in a diesel tank can damage the fuel system, leading to hugely expensive repairs. An independent shop saved ...

Diesel exhaust fluid is essential for keeping your engine functioning without letting off too many emissions. But it doesn't do well in the cold; here's why.

The DEF Cube is a heavy-duty storage tank for large quantities of diesel exhaust fluid (DEF) and features a durable design outfitted for rugged environments. The DEF Cube can help operations meet DEF ...

Diesel exhaust fluid (DEF) is a critical component in achieving both optimal performance and compliance with emissions standards. To maximize the benefits of DEF, it’s essential to understand proper ...

Diesel exhaust fluid (DEF) is not volatile—it’s noncombustible, nonhazardous and not a pollutant—but if contaminated or improperly managed, it can have significant consequences for engine emissions ...

We may receive a commission on purchases made from links. The government's strict emissions limits for combustion-powered vehicles have pushed automakers to develop technologies that let their engines ...

I recently read a pretty startling statistic—in the next year, the off-highway engine market will consume about 20 million gallons of Diesel Exhaust Fluid (DEF). In the next five years that number is ...

This is part of FleetOwner's Fleets Explained, a Trucking 101 series to break down aspects of the trucking and fleet management industries. You can read more from the ...