The LB7 was notable for being one of the ... the automotive press hailed it as a complete revamp of the Duramax engine, with new or modified parts throughout. It wasn't all talk, either: the ...

GM’s Duramax-powered Chevrolet Silverado and GMC ... Currently, a 2.5-gallon tote of DEF sells for between $15 and $25 at the local parts store. Flipping through the Silverado owner’s manual ...