It measures the liquid level in the oil sump very well, it cannot measure what is in the heads. If you allow the engine to idle long enough to pump maximum amount of oil from the heads you get the most accurate level reading assuming the car is level.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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