INSIDE LOOK

It has been years—over a decade, in fact— since reducing emissions or improving fuel economy was either easy or cheap. In the early days of engine efficiency upgrades, you could get a…

LB7 Duramax Engine Tech

When introduced in 2001, there were plenty of naysayers worried that the 6.6L Duramax diesel would never hold up to the abuse and life it’d live in a 3/4 and 1-ton truck. As the years…