My '09 G37 Journey has a small leak. The fluid is blue. It feels more like oil than water. My guess is that it's coolant. The car has <50k miles, so it is still the original factory coolant.
G37 by Frank Fitz | Photobucket

 

That would be a coolant leak, check all hose connections first, may have to remove the plastic splash pan under the motor if you don't see any leaks from above.
Hopefully a simple removal of a hose, clean-up the connection will be all it takes or hose & clamp replacement.