hi all, wondering if anyone can help me with a problem with my D3 using excessive amounts of oil, the head gaskets had gone on my disco3 which was using water, i had the head gaskets done but when it came back it started using about a gallon of oil a week, took it back and they told me it could be the turbo, its now had a new turbo but still got same problem, any one with any idea what the problem can be, cheers mick