2024 Duramax Diesel Specs. Duramax's are easy on oil. Looking at a new 2024 at4 and just curious if the 10 speed transmission helps with.
Looking at a new 2024 at4 and just curious if the 10 speed transmission helps with. 2 of mine run delo 5w40 year round and the newest one i’m trying the ultra low ash delo 600 adf 15w40.