Diesel oil change question

[essexjet]

I have a 04 PS superduty and have been reading in the diesel stop (http://www.thedieselstop.com/ubbthreads/) forum that people are changing there diesel oil at 12,000 with oil filters being changed at a 6,000 miles between oil changes. I have been changing my oil and filter at 7500 miles. Is anyone else changing there filters only or do you change them both at the same time.

[Blacksheep]

I have a 99 Ram 3500 w/ the Cummins and I change the oil and filter every 3000 miles. I know many books and techs now say you can go 7500 - 12,000 miles depending on how and where you are driving, but the way I look at it is that the oil is the life of your engine. I have had friends with my identical setup that would go 15,000 miles and it still didn't seem to be a problem. Seems to be a preference of the owner. A few extra bucks to keep it running good doesn't bother me and I'm 150,000 miles going strong!!
Just my .02.

[Lightning]

I have a Duramax and change oil and filter (oil and fuel) every 10,000 miles.

[Bre]

Andy does both every 4K miles on our Excursion.

[Kachina26]

It's a Ford, just throw it away when the low oil light comes on

[JetBoatRich]

I change mine every between 3 and 5 thousand miles

[RidinRed]

In my 99.5 PS-SD I was doing oil/filter every 5-7k, w/ fuel every other oil change. now, it's oil filter at 5k, fuel at 10k and i dump the oil at 25,000.
ohh, did I mention now I am running Amsoil? now pushing 190k miles
(knocking on wood)
kinda depends on your driving though my .02

[essexjet]

In my 99.5 PS-SD I was doing oil/filter every 5-7k, w/ fuel every other oil change. now, it's oil filter at 5k, fuel at 10k and i dump the oil at 25,000.
ohh, did I mention now I am running Amsoil? now pushing 190k miles
(knocking on wood)
kinda depends on your driving though my .02
Yea my next oil change I will be putting in Amsoil but damn 25K between oil changes that will help in the bank account.

[Essex502]

Amsoil is great stuff but don't use it in a diesel until at least 10,000 miles on the odometer. After that, depending on use 25K miles or a year is reality. You can always pull a little out and do an oil analysis if you are curious on the quality of the oil.

[RidinRed]

Amsoil however is pricey, about $100 for 4 Gl. They have even more miles between recomended changes. I know in our 2 strokes I run their 100:1 and everything is beautiful in the combustion chamber.
Yes Essex, I didn't run it until I hit 100k miles. I'll do the boat once it has some more time on it...
*couple more things to note-
atleast on the 7.3's the oil pan can not be removed w/out pulling the motor, so do not strip the plug! and the drain plug washer tends to leak after a while fwiw