So I bought a new 2013 2500HD with the Duramax LML with z71 and 4wd with electronic transfer case. I've been searching a bunch of other diesel forums with no good results.
Truck has 8k on it now and am going to do the engine oil and change the spin on external filter for the allison trans. I've read that some are suggesting drain the rear end fluid and replace with new at around 5-10k to get rid of the break in material which seems extreme to me. Also draining and replacing trans fluid at 5-10k as well which again seems extreme.
Just curious what maintenance you other duramax owners suggest and have done with your rigs. Figured a lot of people on this forum would be more prone to preventive maintenance then just the bare minimum so i'd get some good solid advice here which I can't seem to find on the other forums.
I'm still young and dumb and this is my first diesel and I would like it to last me a very long time as most people would.
Thanks in advance.