I have seen no uoa's or voa's with this oil. Does anyone have any experience with it, good or bad? My son bought a new Silverado, with a 5.3L, and they recommend a 5w30. He wants to stay with conventional oil. He has always used Quaker State. He plans on doing 5K oil changes. He does frequent short trips. My other son has a Silverado also, and the oil life monitore has been calling for 7K oil changes, but he does 5K, to stay a little conservative. Any opinions out there from the people in the know?