they can come with either a 5 speed manule transmission, or a 4 speed auto transmission
The 2003 Nissan Sentra has double overhead cam (DOHC).
Dextron II.
Use Dexron II transmission fluid.
The 2003 Nissan Sentra SE-R uses a high revving engine. The manufacture recommendation is 10w-40 which will protect the engine and lubricate the internals.
The 2007 Nissan Sentra has double overhead cam (DOHC).
The 2002 Nissan Sentra has double overhead cam (DOHC).
The 2005 Nissan Sentra has double overhead cam (DOHC).
The 2008 Nissan Sentra has double overhead cam (DOHC).
The 2010 Nissan Sentra has double overhead cam (DOHC).
The 2006 Nissan Sentra has double overhead cam (DOHC).
The 2013 Nissan Sentra has double overhead cam (DOHC).
The 2011 Nissan Sentra has double overhead cam (DOHC).