What else could it be brought the car in Dec 2017 got home and seen the oil in water. changed oil cooler still no joy. madley took engine out brought new cilinder head all new gaskets for engine had it skimed and the ports bored so new head aswell ov new oil cooler new rad new thermostat new injeters and more..garige gave it bake and a week latter happens again..lost buying the car and what I spent I'm over 10 grand could the egr play a part in it