Ecoboost maybe, but not for the hybrid 2.5L. Ford fills it with 0W-20 full synthetic at the factory and that's also what the manual calls for.Full synthetic should not be used in a new engine. It interferes with piston ring seating. While modern engines have VERY tight tolerances (I used to work on the engine line for Ford) there is still break in required. Ford's recommended oil is only a semi-synthetic, i.e. conventional oil with a little synthetic in it.
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