According to the 2011 Ford Escape Owner Guide :
For the 3.0 liter V6 engine ( Motorcraft FL-500-S engine oil filter )
For the 2.5 liter four cylinder engine (Motorcraft FL-910 engine oil filter * )
( * I was looking at www.fordparts.com and it shows part # FL-910 as being a spin on type of oil filter , apparently there is also a cartridge type oil filter , but Ford doesn't show the part # for that )
The 2011 Ford Escape has a 2.5 L base engine size.
The 2011 Ford Escape has an inline 4 engine.
It takes the size it needs.
Depends on the engine size 4 or 6 Cylinder?
The 2003 Ford Escape has a 2.0 L base engine size.
The 2005 Ford Escape has a 2.3 L base engine size.
The 2012 Ford Escape has a 2.5 L base engine size.
The 2001 Ford Escape has a 2.0 L base engine size.
The 2009 Ford Escape has a 2.5 L base engine size.
The 2008 Ford Escape has a 2.3 L base engine size.
The 2004 Ford Escape has a 2.0 L base engine size.
The 2002 Ford Escape has a 2.0 L base engine size.