Why is the oil of my hippocampus Familia III 10 so expensive? I looked it up online and said it was quite fuel-efficient. The cost of my 10 block of oil is definitely not exaggerated. 1.6VVT

It's a little high. You can switch to the 4S shop or check the fault code in the repair shop. I don't know if I checked the fault code during maintenance. It is more likely that there is something wrong with the VVT, and the opening and closing time of the valve cannot be adjusted automatically. The throttle position sensor is also faulty. Look it up, there's no harm. Find out the fault code and ask the 4S shop for the gas fee. Of course, you have to ask the inspector to print out the fault code.