Like many others of his generation, John Mack's first work experience was a turn on the plow. His German parents owned and operated a farm near Scranton, Pennsylvania, where John and his four brothers ...

New 12.8-liter MP8 dieselin highway type MaxiCruise tuning makes up to 485 horsepower. It's strong and clean-burning. Maxidyne and Econodyne versions have somewhat different operating characteristics.

Green Granite with its 2010 SCR diesel is owned by Mack and was loaned to Haines & Kibblehouse for testing. It has worked well and fuel economy is encouraging. MP7-405 Maxidyne diesel looks like a ...