LOL, calling the guys who fix the stuff "knuckleheads". I have real world experience that shows what the engineer develops on paper, in a cubicle does not always work out. Also, what percentage of consumer actually checks their oil? Let me tell you, not a lot. We constantly get customers with " the oil change light" on. Nope, that's the oil pressure light, you idiot and there isn't any oil in the pan. You assume a 0% oil consumption rate or a highly motivated consumer to add oil during the extended oil change interval.Any quality synthetic oil is OK. But, unlike what others have said, you do not need to change the oil at 5K miles. The engineers at the factory who designed and built your vehicle know best, not the "knucklehead" or "master" mechanics at the dealership or some tech school kid. Engineers say 10K is all you need. I vote with the experts (engineers).
Just be sure to use an OEM oil filter: Thinking the dealer used the wrong filter for my 10k oil change
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