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Discussion Starter · #1 ·
Hi Guys

We bought a used 2007 chevy dually diesel. We have the warranty manual and the owners manual, but the extra Duramax diesel manual was missing.
I called GM, which has always been hopeless, I asked if i could download a copy from their website, this is not an option according to them even thou we found it for a 2011.
We were given a number to ring to buy a copy , which I guess as a last resort we will have to do, but surley in this day and age we could download it from somewhere.
Any suggestions please.
The mainthing we need to know, is which oil to use in our engine and how much in total it holds.
I am sure someone here must know that, it is the late 2007 model LMM engine,

Thanks for your help

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