Autoblog put a 2011 Explorer Ecoboost through the ringer, and had this to say:
While we can absolutely see a good reason for buyers to pony up a little extra coin for the EcoBoost 2.0-liter in the Edge, the engine makes more sense to us as a no-cost option in the Explorer. Ford has already employed a similar tactic with the Lincoln MKZ Hybrid, allowing buyers to choose between greater fuel efficiency or greater power in the V6 model without asking them to dig any deeper into their bank accounts. Though the Explorer EcoBoost is a solid driver, we simply don’t think the optional engine’s benefits offset its taller price tag and reduced capability.
Four cylinders, one turbo, 240 horses, 4500 pounds, and just 2,000 lbs of towing capacity. That’s the Explorer Ecoboost in a nutshell. Is the extra 3MPG worth the price premiem, given the downsides? I’m leaning towards no, given that there are better choices out there.
Read more about the 2011 Explorer Ecoboost.