I have a 98 eldorado, and the radiator is leaking. When I bought the new radiator, there was one with an oil and transmission cooler. I have another small radiator in the front, with 2 hoses running through it, which is what I think is the oil and transmission cooler. Does anybody know if it is?

 

The tranny and engine oil coolers are iside the radiator. That extra little, finned cooler is for the Power Steering fluid.

 

Got that figured out when my friend had a problem with his Mazda engine oil cooler and I had to compare it with my caddy... And yes the oil and tranny was inside the radiator... Try to check it, if it is the cause of leakage... And the that small thingy with two hose cooler is for the steering fluid... Goodluck!!!