Hello, I have trouble with the car. Namely, I do not know what is going on and by giving to the mechanic I would like to reach your opinion. Auto Hyundai Coupe GK 2.0 CVVT 2005 I'm running away with a coolant at a speed of 200ml per 100km, before that the engine burned 0.2l per 1000km and now I do not have to add hmm ... The temperature gauge should probably constantly indicate a constant temperature after heating and I have deviations on a scale of 2mm. depending on whether they are standing or going. I thought maybe it was a gasket under the head because under the car it is dry and nothing drips. The car gently jerks on white and the engine does not look like much. I purchased a tester for detection in the exhaust gas cooling system, but after 25 minutes. on the warm engine he does not react, so I do not play anything here. After attaching it to the exhaust pipe, it changed color after a while. Is it possible to damage not only the gasket but also the head, crack it? It seems to me that the exhaust gas should get into the cooling system and the pressure should increase in proportion to the engine speed.