truck I've posted about before, buddies 2011 4.8 Chevy currently with 125k miles.Its due for an oil change. He's currently in clinicals to become a physical therapist, and for the next 10 weeks, the facility where he has to go is 1 mile from his house, 5 days a week,so cold starts and short trips will be plentiful for the next 10 weeks. He does have to make an 80 mile round trip once a week to a local town, so I think thatll help burn off the moisture. I was thinking of running Quaker State Ultimate Durability 5W30 and either a Fram tough guard or ultra, and changing it at 3k miles instead of the usual 5-6k miles due to all the short trips. Or would Mobil 1 Advanced Fuel Economy 0W30 be better?