2009 Nissan GT-R Owner's Manual - Page 18
2009 Nissan GT-R Manual
Page 18 highlights
Mechanism . Ultralight flywheel . . Operation characteristics An ultralight flywheel is provided to achieve rapid engine response to the accelerator pedal operation and quick shifting response to the paddle shifter operation. These are essential for a supercar. However, you may notice a large rattling noise from gears because engine rotation fluctuations become larger while idling. Due to changes in engine speed through the operation of the air conditioner, rattling, shaking or jarring noises may be heard when idling or driving at low speeds. Rattling noises may be heard when the engine is started or stopped. Dry sump lubrication High-efficiency dry sump lubrication is provided to achieve low agitation resistance of lubricant oil and allows smooth transmission gear rotation that contribute to obtain a perfect balance between outstanding driving performance and improved environmental performance. However, you may notice some rattling noise due to engine rotation fluctuations. GT-R Overview GTR-11
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