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Message: <blockquote data-quote="wc9922" data-source="post: 294946" data-attributes="member: 6000">u guys got an engine problem cause your block is magnesium alloy with alloy liners and the pistons are aluminium alloy.  The rate of expansion for these materials are different and the diff gets greater as the temperature builds up. When this happens your piston rings aren't able to seal as tightly and you get blowby through the rings. There's where your oil has gone....into the combustion chamber and burned off or through the crankcase ventilation system into the intake manifold, which is more likely case.Seach the internet, there's a warranty issue on the N series 6-cylinder magnesium based engine recalls performed. There is a check procedure they have to go through before they reach the stage where they will issue a new engine under goodwill warranty.</blockquote>