Finally able to take a pic of the oil filter cooler housing area. Haven't had the time to clean the area to see if it would leak again. But, by the picture alone, it is definitely the oil filter cooler housing gasket, lol. I went to the local Nissan dealership,and decided to order the correct oem oil filter housing gasket O-ring and oem front crank seal(both made in Japan.) Part #'s for '03 Max: oil filter gasket o-ring #21304-JA11A :Front crankshaft oil seal #13510-31U10. Can't go wrong with oe