how to get the radiator oil

Hello, I have to clean a radiator that is covered by oil mixed with the water looks like a fat. If someone can explain how to clean it. Thank you

First with boiling water, fill it with boiling water to get the fattest, once this is done, you could prepare a mixture of ammonia and 25% water if it can be hot water better, you let it rest 10 minutes and rinse it a couple of times and surely it will be clean

Oh friend! , as the partner tells you it can be a good idea, you will see that I had a breakage of the oil cooler in a vectra and the entire fat circuit (emulsified oil) is filled; The chamba was first to disassemble all the sleeves and clean them with a roller (as if you were to make empanadillas, then put dishwasher concentrated to the radiator to wash with mamguera (to the motor block the same), mount the sleeves (without mounting the thermostat ...) to put water with a hose and let it do the whole circuit until it comes out clean from the bottom of the radiator, then to buy a cleaner I specify this 20 EUR . I say that if it is because of the oil cooler, rose patience .... Greetings !!