People with focus's. Should I do the fill with Mobil 1? I moved closer to work so I'll be doing lots of short trips now. The car has 75,000 on it. 2010. Runs perfect
A 2010 would require Mercon LV. Mechanically, I don't believe there is anything different between the 4f27-E in your 2010 than a 2001 that also has the 4f27-E transmission.
Install a transmission cooler on it if it doesn't already have one.