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Not to mention there was only one CJ-4 oil tested (the lowest-ranked). Without the typical additives found in CI-4, wouldn't the CJ-4 be "worse" (although mandatory for a 6.4L with a DPF)?
I would like to see all of the same brands tested with a CJ-4 rating to see how they all compare, apples to apples. But for now, same old Motorcraft for me!
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2008 F-250 XLT Supercab 4X4 6.4L Auto, short bed
Toreador Red, 3.73 gears, Job 1, Huntsville motor
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