The process is the same for any fourth generation (2007, 2008, 2009,
2010, 2011 & 2012) Nissan Altima equipped with the 2.5 liter I4 QR25DE
engine.
Here's the page - http://www.paulstravelpictures.com/2007-2012-Nissan-Altima-2-5-S-I4-Engine-Oil-Change-Guide/
I hope someone finds it to be useful.
Cheers,
Paul