Does 2013 Cummins use DEF?
Does 2013 Cummins use DEF? Selective Catalytic Reduction (SCR) The technology later became standard on all 2013+ model year Ram pickups equipped with any version of the 6.7L Cummins turbodiesel. The SCR system requires the use of diesel exhaust fluid (DEF), a substance comprised primarily of urea and water. Does 2013 RAM use DEF? Before […]