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Originally Posted By: dnewton3 I agree with the 5w-20 recommendation. I understand that this might be a truck application, but the 4.7L SOHC is a gasser at it's heart, and not a diesel. That being said, any of the major brand names in oil will protect it well. The real issue you should be...

Hey, I searched (albeit probably not correctly) for what people were running in their 4.7's. A friend of mine recently picked one up and he's wanting to switch over to a synthetic. I assume we'll be fine w/a name brand 5-30 I was just curious if there were an used oil analysis w/solid results...