Quote:
Originally Posted by FricFrac
From what I know (as little as it is) an engine will perform better when the oil is hotter. I'm assuming there is a point where the oil breaks down and loses its properties but I'm assuming we are no where near that limit at 250F. With our tight tollerances and micro machining, etc isn't lower viscosity going to help the parts rather than hinder/wear? If the oil is to viscous will the drag and force pushing the parts apart cause wear on other parts?
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Nissan has determined that, at 280 degrees on the recommended oil, the maximum RPM's should be reduced. Basically that's all anyone knows.