Banks Power found the L5P Duramax's stock oil pan design leaves nearly a quart of old, contaminated fluid in the system, even after a filter change.

PC Classic Cars, a Sherman, Texas-based old-school dealership, again has some interesting proposals for an asking price ...

Early in the history of Duramax engines, GM changed the LB7 series of engines to LLY, but it can be difficult to tell them ...