How long will a Dmax last? i am not talking about injectors but i am talking about a over haul or replacement motor? what is the life expectancy?

I think this question has been asked over a few times. I think if you do a search you will find what you are looking for. Most will say 300K miles. Some say more and some say less, all depends on how good of care you give it...

I am curious too. Unfortunatly, only time will tell.

4+ years so far. That is with the first 2001 Duramax's that were built. There are some still on the road today. A great performer but still to soon to tell just how long.