2024 6.6 Duramax Specs. Detailed specs and features for the 2024 chevrolet silverado 2500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type,. General motors announced a revised, more powerful version of the 6.6l duramax diesel for the updated 2024 model year gmc sierra and chevrolet silverado hd.
The truck’s l5p duramax diesel engine received a substantial bump in power and torque thanks to a stout list of upgrades, including a new turbocharger, improved piston design, enhancements to. Factory fill is delvac 15w40.