hi all couple months back a checked oil level on ma Passat tdi 2001 and the oil level was way above minimum but had no lose of any water changed oil and a couple weeks later same again I have just been draining oil and refilling every time since but now has started to use some water aswell has anyone any ideas on what this could be except for head gasket as rely need to fix there is no oil in water its perfectly pink as it should be thanks