Diesel engines can be more efficient than gasoline engines, but that's largely due to DEF. Here's what it does, how it helps, and what happens if you run out.

Which diesel exhaust fluid is best? When you have a diesel vehicle, besides adding fuel, you need to add diesel exhaust fluid. Diesel-powered vehicles require diesel exhaust fluid to reduce engine ...

The U.S. could soon experience a severe shortage of diesel exhaust fluid (DEF), impacting U.S. drivers already hit with soaring fuel prices. DEF is a solution made up of urea and de-ionized water that ...

Truck drivers already struggling with extremely high fuel prices are also dealing with more expensive Diesel Exhaust Fluid, which is a key product needed for most everything that runs on diesel. Truck ...

Rislone DEF Crystal Clean Protects Diesel Emissions and Exhaust Systems Most drivers know the consequences of running out of fuel: The car or truck will stop running, and they’ll be stranded. But what ...

GREENVILLE, NC (WNCT) — Sheetz locations that offer Diesel Exhaust Fluid (DEF) could save diesel drivers $15-$75. Typically the product costs $3.50 a gallon, but with this recent announcement, diesel ...

Pilot Travel Centers today, Sept. 15, began operating two diesel exhaust fluid (DEF) fuel island pumps in preparation for serving vehicles equipped with selective catalytic reduction (SCR) to meet ...

Since 2010, diesel-powered on-highway trucks in North America have been using selective catalytic reduction (SCR) as an exhaust after-treatment technique to control nitrogen-oxide (NOx) emissions. And ...

If you're short on time, here's what you should know. The primary claim made in the viral Facebook post was that Union Pacific was placing an embargo on Pilot Flying J. That supposed embargo would ...

Truckers can now buy diesel exhaust fluid (DEF) right at the fuel island at the Brooks, OR, Pilot Travel Center for $2.79 a gallon Truckers can now buy diesel exhaust fluid (DEF) right at the fuel ...

Diesel Exhaust Fluid (DEF) contamination with Fuel System Icing Inhibitor (FSII) is a very serious threat to the aircraft fueling system. There have been multiple incidents where DEF was mistaken for ...