The problem is that that engine (K Series) is prone to blowing head gaskets. When an engine has blown a head gasket, it usually causes a lot of damage, wrecking the engine completely or weakening it so that it will blow head gaskets regularly in future.
The only thing that an owner can do is ensure that the coolant is always up to level as overheating can be a factor.
The only permanent action that an owner can take is to get rid of the car.
T, November 2008