Duramax Diesel L5p Review 2024 Release Date. More might than any one person really needs, but where's the fun in that when. For 2020, a 10 speed automatic transmission became standard on all l5p equipped trucks.
For the 2023 model year, the baby duramax got new fuel injectors and pistons, a retuned turbocharger compressor, and a redesigned combustion bowl. Take a look at what has changed, and the other features and new front end styling.