My new 2014 fofocus calls for 10,000oil changes. I don't mind spending money to keep it Like new and lasting a long time. I currently have 4600 miles on it and am running pp 5w20. I am 3,000 into the oil change and am second guguessing 10,000 mechanics and others think 10 is way to long. It's longer than I have ever gone. Being a di engine and I run highways everyday but am udually do 80mph or so. Would you do the 10,000 would you do a shorter interval and use a Dino or maybe shorter and use pp like I currently am. What would you do if it was your personal vehicle?