The key here is the wrong oil can cause damage in a common rail diesel or any electronic high pressure oil over fuel injectors
You have to follow the oil rating for a powerstroke diesel. The injectors are electrical actuated, high pressure oil fired (3000 psi at times) and that pushed a slug of fuel into the cyl
The wrong oil foams, its real bad, even additives to a "proper" oil can hurt a PSD, and at best will just run horrible, but at worst can cause bad scoring.
Just read the oil requirement in the manual, as long as it matches the high pressure / anti-foaming of the requirment, it'll be fine, but you CANNOT just run any oil, not even any real expensive oil in a Powerstroke, or any other oil fired common rail injectors, it'll get expensive quick
Synthetic versus dino doesnt matter, but the rating HAS to match, cant run regular rated gas oil in the new diesels (for long)
<font size=-1>[ This Message was edited by: My427stang on 5/11/06 10:12am ]</font>