Something tells me that they have to pump the old stuff out first.

It's hard to find low sulpher diesel fuel in the Atlanta area. They started
switching over to ultra low sulpher about 6 months ago.
One concern of mine is for the guys that must use ULSD. What happens when a
station switches over from LSD (the fuel, not the drug) to ULSD? Do they
empty the storage tank completely before getting a ULSD shipment? Can they
dump 500 gallons of ULSD into a 250,000 gallon tank half full of LSD and
sell it as ULSD? How does the customer know for sure? If something like that
happens and it causes engine damage, how can the customer prove which
station he bought the mislabled tank of fuel from? My '99 CTD is giving me a
bit of trouble right now but I won't even consider replacing it with a new
one for a few more years.

Hook up the trailer and go.  just keep an eye on your fluids and temps
and you'll be ok. the electronics that control the engine will take
care of business if there's a problem.

I maintain a nationwide fleet of trucks.. an engine like yours would
see its first oil change in the 6000-8000 mile range. most new trucks
will hit the road and not be seen again until their next pm service. I
doubt very much the people who rent/lease any of these trucks are
concerned about the actual breakin.. they just load them up and run
the bag out of them.

6000-8000 miles. large fleets go around 10000-15000.

in the states all you're going to get is low sulfur unless your buy
fuel that's for off road use. More than likely you won't find it at a
fuel station. the engine in your truck was designed to work with the
low sulfur fuel.

I have had three Dodge trucks so far, a 92 Dakota, a 02 RAM and a 04 RAM,
none with diesel.

Loved them all, but now we went a bought a bigger trailer so my wife and I
just bought a new 07 RAM SLT quad cab 2500 with the 5.9 Cummins diesel
tonight and will pick it up on Tuesday.

Now before I get flamed silly, I have read, searched and hunted a pile of
newsgroups, Goolge etc and cannot find consistant answers to the simplist
questions for a new diesel owner. No manual yet either. So this is why I am
asking the group.

1) what is a break in period before I can tow the trailer. It is a 7200 lb
travel trailer.I was told right away by the dealer and after 5000 kilometers
by my neighbour who has an 05 mega cab 3500.

2) when should I change the original oil?

3) I have been told three answers to this question, how many miles
(Kilometers) between regular oil changes should I expect? one guy said
12,000 kilomters (7000 miles), another said 10,000 kilomters (6000 miles)
and another said every 5,000 kilomters.(3,000 miles). I am used to changing
the 04 Hemi every 5000 kilometers.

4) Can you really run any of the diesel fuels in the 07 5.9 Cummins or must
I only use the Ultra Low Sulphur fuel.

any other special things to watch out for?

I promise I will read the manual when I get it, but I just want some real
world opinions. I know these sound pretty simple to most of you, but
....................

thanks
Wayne