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oil type

  1. 6.0L Power Stroke Technical Info
    I have been using Shell Rotella T-6 here in Belize in my 2006 E350 6.0 (bullet-proofed). The Shell dealer in Belize says they are no longer bringing it in, only T-4 which is blended. Is there a problem switching to T-4? If so, what other brand/type synthetic should I be looking for. I haven't...