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At the risk of starting a Holy War, I wonder if anyone running 5W-30 (exclusively) has had a pump failure. The recommended 40 weight oil is going to be more prone to cavitation than a 30 weight.
As an aside, my digging seems to indicate our oil pump was originally developed for the Chevy Cruze. The "economy" (i.e. low volume) mode is supposedly good for ~3% in that car.
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