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i'm about to find out who produced Orielly's oil because an old dude told, "you think Orielly's is producing oil" Made me think, they producing labels to put on that bottle but I bet their oil is just as good.
Which model year?Mobil 1 high mileage 5w-30 here. 147k miles. I bought my truck new, and ever since I started doing my own oil changes (65k miles or so) I've been using Mobil 1.
edited to add: I always change my oil when the oil % gets to zero. I've never done it based on mileage.