General Motors' Duramax diesel engine lineup has been powering ... it's not the only motor to get the Duramax badge. Smaller Duramax engines — including two 2.8-liter engines and one 2.5-liter ...

The diesel-powered Tahoe does not look any different than its gas-powered sibling inside or out. However, the tailgate gets a discreet Duramax badge that’s easy to miss and serves as the only ...