Nissan have several different models with different engine options. There's no single answer.
The 2010 Nissan 370Z has a 3.7 L base engine size.
The 2001 Nissan Quest has a 3.3 L base engine size.
The 2006 Nissan Frontier has a 2.5 L base engine size.
The 2014 Nissan Quest has a 3.5 L base engine size.
The 2013 Nissan Armada has a 5.6 L base engine size.
The 2007 Nissan Maxima has a 3.5 L base engine size.
The 2014 Nissan Titan has a 5.6 L base engine size.
The 2013 Nissan Frontier has a 2.5 L base engine size.
The 2005 Nissan Frontier has a 2.5 L base engine size.
The 2009 Nissan Pathfinder has a 4.0 L base engine size.
The 2013 Nissan Xterra has a 4.0 L base engine size.
The 2013 Nissan Pathfinder has a 3.5 L base engine size.