Mack Trucks is recalling 2,124 Mack MRU and LEU (TerraPro) trucks in the 2011-2016 model years, as well as LR6 trucks in the 2015 and 2016 model years, because potential engine-cooling problems ...

TET supplies DEF under the brand name TerraCair Ultrapure DEF. Both firms use DEF in their Selective Catalytic Reduction (SCR) emissions control systems. SCR is an exhaust aftertreatment system that ...