Modern oils, such as the fully synthetic Magnatec 5W30, are so good at protection, that they slow-down loosening-off of the new engines. I for one, would be very cautious about using anything better, until I was convinced that the initial running-in was complete. Ford multivalve engines use steel liners in a bored aluminium block, so sealing of the bores/piston rings takes ~ 1 year of average use, and you will see oil usage drop, and the engine will be more free-revving, with better MPG. Once convinced the engine is no longer "tight", then you can use the better oils, as advised by the "oilman" at Opieoils, who give free advice to various forum member groups, and associated discounts. (not just oil;-- they recently added NGK v.long-life sparkplugs-- used to be difficult to find, so I am using Denso Iridium Power ITV 16, in my Mk 6.5 1.25 Zetec Climate)
When my car is past the 3-year service contract, I will investigate the suitability of 0W30 Castrol Edge, good viscosity for our v.low winter temperatures.(~£10/4 litres dearer than Magnatec, in good motor factor shops, HI-Q, I'm quoting. Big discount If a carton of 4 x 4 litres is bought, as you will find at Opieoils website.
P.S., the 2009 model-year Toyota Aygo uses 0W20 grade engine oil, and quietens engine noise by fitting a rubbery-compliant mount on an idler wheel or tensioner, on the auxialliaries belt. Body-work sound deadening was also greatly improved. The '55 year model had 108g/km Co2, and the '59 revision gives 106 g/km. (109 g/km was the initial figure on V5C documents. P.S., my '58 reg Mk6.5 1.25 Fiesta puts out 139g/km, so my road tax is now £110, older cars with 142 g/km on the V5C, are charged £125 now.)