International’s research facility at Fort Wayne, Ind., sits far from any mountains, not ideal terrain for a test drive. Nevertheless, I was able to take an International 9200i day cab south down U.S.

Cooled-EGR (Exhaust Gas Recirculation) systems have been used since October 2002 by five major engine manufacturers (Cummins, Detroit Diesel, International, Mack and Volvo) to reduce emissions of smog ...