2024 6.6 Duramax Engine Specs. Use the chart below to identify the factory power and torque ratings for your 6.6l duramax diesel. Comprehensive guide to 2017+ 6.6l l5p duramax diesel engine specs.

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. 2 of mine run delo 5w40 year round and the newest one i’m trying the ultra low ash delo 600.