My daughter has bought a Chevrolet Spark and after a year she must now for the first time for inspection. Although there were no defects in the vehicle, the inspection for such a small vehicle is a sauteur fun. At the inspection the transmission oil is changed with. On demand from me the answer is that this is prescribed by Chevrolet. This is in my view a groundless impudence to drive up the costs. I do not know any other vehicle where a gearbox is driven. lwchsel is made during maintenance. I can only say never buy Chevrolet again