GM and Isuzu previously collaborated in the production of the 6.6L V8 Duramax engine for use in GM's heavy-duty trucks.

But thanks to the documentation the company was required to submit to the feds after last week’s bombshell truck and SUV recall, we’re finding out that GM has an even bigger problem on its hands than ...

You might expect a 2.7-liter, four-cylinder engine to be quite a frugal one. But is that really the case with GM's TurboMax ...