Ok so its not affecting my car as of this moment, bt i have noticed rbbish economy. I took the radiator cap off and saw oil mixed heavily in with the water/coolent mix in the radiator. where do yo think the oil is getting in? im quite a confident home mechanic, and would find no problem in removal and flushing of the radiator, im hoping its the leak from the water pump? Any input would be appreciated! Freddie i felt like crying when i opened the radiator cap !