Hello, this is probably a simple question, but I have bought my first diesel. It is a 2002 powerstroke 7.3L . I need to know what kind of oil to use and how often to change it. Thanks for any help

I would use shell rotella oil and change every 5000 miles

Thanks, I will pick some up today

I had a 02 powerstroke, changed it every 6k and it run like a top. 15 Qts of Rotella.:ro)

Many oils to choose from as long as it's diesel rated to the current spec's. I would recommend sampling the oil on a regular basis to forsee any wear problem early enough to correct before any damage is done. Sample kits are available from a few companies like Blackstone and Titan Oil.

I use Delo during my breakin process on my race and towing motors and then switch to Schaeffers http://www.schaefferoil.com/products/motor.html (#700 Supreme 7000 15W-40) with an oil change about every 5k miles. I also use Titan oil for samples at $9 a pop and I can check everything online @ http://www.titanlab.com/