I've been using the mobil 1 Advanced fuel economy 0w-30 in my 2.7L ford ecoboost turbo and am kind of bummed to find out this oil doesn't seem to be well regarded since it is apparently a group III GTL base mostly. I live in a cold climate (Alaska) and during winter end up doing quite a few cold starts below -20 F/-30 C, and unfortunately the vehicle is parked outdoors without a block heater. Sometimes I go north where it can be even colder in the mornings.
It seems that there is no winning and we have to pick between a 0W-30 (ESP) that doesn't meet Ford's WSS-M2C963-A spec and run the risk of warranty issues (I know this is not likely to be a problem), or pick a "better" 0W-30 like the ESP but doesn't meet the Ford spec, or just run a Ford WSS spec'd 5w-30 and give up the low temperature pumpability of the 0W. I'm hoping maybe to defend against the cold start cam phaser issue of these Fords with a good cold starting oil. I'm also cognizant of the calcium and low speed pre-ignition issue, but I think the 2.7L is big enough in displacement not to be too susceptible, I think the DI + port injection helps? - stayed up way too late reading a 20 page debate about that
on here last night. That thread also revealed to me that the manufacturer specs are kind of scammy pay-to-play sort of government corruption situation too, and I can understand the revulsion to anything named "fuel economy" oil due to the CAFE connotations, etc.
To compromise I'm just running the AFE 0w30 and doing 3,000 mile changes for now until I get my VOA and UOA back from blackstone (I know, not highly regarded here, womp womp) which is taking a long time. The oil temp gauge in my Bronco never gets hotter than 190, so hopefully it's not shearing down too thin during summer driving, which still averages ~60F/15C around here. I guess there is an Amalie Elixir 0W-30 that meets ford spec, maybe it is worth a look?