According to Mobil, Mobil 1 ESP does not meet Ford's WSS-M2C946-B1 oil specs.
Originally Posted by john_pifer
Since you like to drive it hard from time to time, might consider going with a 5W-30 that would be more resistant to shear. Maybe one of the 5W-30 oils that are marketed towards Euro makes for higher-speed driving, with an HTHS value of 3.5 or so. Like Mobil 1 ESP. And you mentioned wanting an oil that is very good quality, which the M1-ESP is.