948B Vs. 945A Ford specs

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I promise that I searched...

I see that 948B is the 5W-20 called out for Euro 1.6L Ecoboost Fords. 945A is called out for US spec 1.6L Ecoboost Fords. The Lubrizol relative performance tool doesn't compare them, and I haven't been able to divine the differences via google. Definitely not losing any sleep on this, but it would be cool to know the difference. Any thoughts, guys?
 
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