I believe you are mistaken.
I believe you are mistaken. Please cite your source. Mine is GM: https://media.gm.com/media/us/en/gm/autoshows.detail.html/content/Pages/news/th/en/2015/Dec/1224_Duramax.html
I believe you are mistaken. Please cite your source. Mine is GM: https://media.gm.com/media/us/en/gm/autoshows.detail.html/content/Pages/news/th/en/2015/Dec/1224_Duramax.html