Hi, just had the head skimmed and a new head gasket on td5 and there is still oil in water which within a matter of 30 miles dipstick goes from full to low level. Any suggestions???

Hi , i have a 1999 disco td5 with 180000 miles on clock. has always been reliable but just recently has started to have oil in the water coolant, the engine isn't overheating and there is no water in oil sump. In the last week though the coolant water is disapearing and and around the exhaust...