I have the similar problem, :-? car started running funny/running rough/juddering, then overheated

, very little water in tank, very smoky (it looked white, but it was dark), filled the oil up (didn't need filling alot it was in between min & max) & filled the water up(nearly empty), still smoky and overheating (on acceleratin the smoke disappeared more or less until we had to slow down at a junction then speed up again then would kinda disappear again til we had to slow down), heater now not working, managed to get it home, left it over night (it was very late) and looked at it today and it is still smoky, greyey (idoling).pale bluey/tinge of blue (on acceleration), their is no oil in water, it doesn't look like water in oil (just seems thin) no "mayo" on dipstick but mayo in the filler pipe, your thoughts would be most appreciated, i'm hoping it's not cylinder head or gasket

I have a T reg 1999 Omega 3L MV6
