Ok I have no leak, and I am abseloutly positive of that. I don't have oil in the coolant and I don't have coolant in the oil. I am also not burning it as I just passed air care and see no smoke at all. Every 2-3 weeks I have to add 1/2 to 3/4 of a litre of oil to my motor. It is a 1985 22re, anyone have any idea where this oil is going?