I would like to see some UOAs - even VOAs first - before suggesting either Havoline/Motorcraft synthetic.
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If you want the "Best" -- with the word 'best' loosely defined because we don't know what your definition of best is, you may have to order it online ..ie... Amsoil, Redline, Schaefers....etc.
Are you willing to do that?
If not, then please tell us your defintion of "best"??