Just picked up some of the new Ultra Platinum 5w-30 for my Focus ST with 10k. Used the "old" Ultra after FF was dumped at 1k. This car sees a 30 mile round trip commute each day, the roughly 50/50 split city and highway. I wait for the oil to warm a bit before thrashing it, during which it sees up to 21psi of boost... often and daily. Is there a better oil I could be using without venturing into a racing or boutique type oil? What would you recommend?