6.4L Power Stroke oil?
Is anyone using Shell Rotella in their 6.4L Ford Power Stroke? My last company truck was a 2004 6.0L PSD. We had used Rotella and after many, many problems we switched to Motorcraft 15w40 at the re...
Forum Discussion
Check the back of the bottle for the API rating. CJ-4 and CK-4 would be good. If it is CI-4 or less, I would not use it
