Diesel Exhaust Fluid is a critical component in a diesel truck's fuel system. Here's what it does and how much you can expect a truck to use.

In all, we've spent $0.16/mile on diesel and $0.01/mile on DEF—numbers that would clearly rise had we been hauling closer to the 2,020-pound payload limit or towing nearer the 19,020-pound ...

At a 3% treat rate you would use three gallons of DEF for that same 100 gallons of fuel (about $8.37 spent); Since DEF is less than the cost of diesel, operating costs are actually lower. For every ...

Pilot Travel Centers today, Sept. 15, began operating two diesel exhaust fluid (DEF) fuel island pumps in preparation for serving vehicles equ ... at a 2 percent consumption rate of diesel, ...

Locking DEF tank caps can prevent accidental or intentional contamination of diesel exhaust fluid with diesel fuel. According to FuelDefend, ... maybe 2-4% of fuel consumption.

Here’s What GM Recommends If Diesel Exhaust Fluid Was Added To The Fuel System . By Sam McEachern. August 1, ... DEF actually improves fuel economy while also reducing harmful emissions. Win-win.