General Motors’s (GM) all-new Class 4/5 commercial truck – which is being developed jointly with Navistar and set to debut next year – will get GM’s Duramax engine under the hood and will be matched ...

When it comes to big diesel engines for heavy duty trucks, you have a number of different engines at your disposal to get whatever job you need done. Modern turbo diesel engines are marvels of ...

Adding power and fuel economy are always high on diesel pickup owner’s wish list. But one performance area many work truck owners overlook toward those two goals is the most obvious:clean fuel ...