In 2019, General Motors introduced the Duramax 3.0 diesel engine in its lineup, which could outperform or match its rivals in power and towing capacity. Several years later, in 2023, the inline ...

It isn't just fewer cylinders that make the Cummins more efficient ... instead of every 7,500 miles recommended for the Duramax engine oil change, the Cummins is double that at 15,000.