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Yeah, it's using oil (500mi/qt), but like others smokes a little at start-up then settles down, smokes a little on acceleration, and accumulates a light brown film on the valence around the exhaust pipe after about 1000mi. I don't really see hardly any smoke and looking at the plugs there's no indication anything is wrong, it's like the oil is being spit out of the exhaust ports. If I drive it hard the oil consumption goes up (400mi/qt). Could oil be sucked down the exhaust guides? If so then during positive pressure the oil is blown back up into the cam towers, and during evacuation/low pressure it's being sucked into the exhaust ports?
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