General Motors once stated, on the record, that every prototype of its 4.5L Duramax V8 diesel had been destroyed. That claim just got a lot harder to defend. A surviving unit has surfaced in Sweden, ...
The L5P Duramax diesel V8 is what powers heavy-duty work trucks like the 2025 Chevy Silverado 2500 HD and is an amazing powerhouse. It didn't exactly start off that way back in 1984 when GM first ...