This story appears in the Aug. 20 print edition of Transport Topics. The price of diesel exhaust fluid at the pump at U.S. truck stops dropped significantly in July, following a similar decline for ...

Tightening diesel emissions standards for Class 8 trucks that were phased in between 2007 and 2010 practically mandated the use of urea aftertreatment to meet the dramatically lower NOx standards that ...

Fluid-handling or transfer devices are not basically concerned with the modulation or transfer of power, but only with the movement of fluid. Two major types of fluid-transfer pumps are ...