Upcoming mid-size SUV's for towing

Bumpy, you're correct about the Ecoboost regular-vs-premium fuel. There's a report on a Mustang forum that appears reliable, based on Ford training materials, that says the 2.3 Ecoboost engine generates 310 HP/320lb-ft on premium but drops to 275 HP/300 lb-ft on regular. Supposedly it runs just fine on regular, so it's not a durability issue -- just a power & torque issue. I would think that the ECU dials in less ignition advance and/or richer mixture, based on knock sensor readings, when running regular. In my situation, I wouldn't have a problem with this scenario. The reduced HP/torque on regular gas would be fine for me while not towing, and I'd just fill up with premium prior to towing. Best of both worlds, maybe ... although I'd like to know the MPG results for premium vs regular. If the MPG declines with regular gas, then maybe premium might be beneficial all the time -- and I'd have to think hard about that, compared to a regular V6 that never needs premium.

(Edit) just to clarify ... sounds like the Ecoboost engines only "require" regular, but the published HP & torque ratings were obtained using premium fuel. Not sure if premium was used for the published MPG ratings, needs more research. It does seem a little deceptive on Ford's part to claim the requirement is regular but ratings were obtained with premium ... but I wonder if other manufacturers play this game also? I believe every engine has an ECU that can adjust tuning to octane, not just the turbo ones.