2.4 With or W/O oil cooler
I have a 2011 Compass with a 2.4 engine that is junk. I am going to Swap engines with one from a junkyard. The problem Im having is I have found a few low mile engines to fit it but the auto yard has them listed as with or with out oil cooler. First of what would be the difference of an engine with a oil cooler than one without? Isn't it usual just an external cooler? Are they somehow integrated into the engine? How do I tell if my current engine has the oil cooler or not?