2004 Dodge Sprinter - radiator vs. oil cooler?

dodge
sprinter

#1

My 5 cyl deasial Engine has oil in my raditor overfow and a small drip of oil comes out now and then. Engine oil looks great very little loss. No overheating or other issues. Had new transmission put in a month and 2000 miles ago no issues. Can it be the radiator or oil cooler?


#2

The oil you see in the reservoir could be transmission fluid. The transmission cooler in the radiator right side tank could be leaking transmission fluid into the cooling system.