I noticed that my car is missing coolant in the past 3-4 months.
One morning I got the "check engine coolant level" warning at my board comp, so i filled the tank to the "MAX" mark. After a few days I went to check the coolant level, and the level was 1cm under the "MAX" mark. I filled it up again, and every 50 km the car uses 1 cm of the coolant.
The car runs fine, it starts fine, idles fine. So I think it shouldn´t be the head gasket. Also there is no "mayonaise" in the oil.
What else could it be?
It started to happen since I installed the VXR turbo. But there are no visible leeks around the turbo, or anywhere on the engine (at least there where I could see them).
It´s an Astra Coupe with 59.000 KM.
It´s making me crazy...