Hank85713 wrote:
I use shell rotella t6 in my 6.0 psd. Most reports I have read all almost recommend the synthetics over dino oil. Yes it will be a little more per oil change but you can extend the interval if ya do oil analysis. I go about 5000 mile per oil change but you have the common rail engine so you can go a little further depending on what the manual recommends.
I have a Cummins rather than a Powerstroke but I use Rotella T6 too. Good stuff. Best price I've found is Amazon subscribe and save for $18/gallon. With the Fleetguard filter a change runs a little over $60, which is a good deal for full synthetic.