Bought an aveo hatchback 1.6L like 3 days ago. Everything looked normal. Now i noticed whenever i start the car in the morning (cold engine) it revs too much with little power. Gear shifts at more than 3200 rpm from gear 1 to 2 even though i rev gradually.
After 10 minutes of driving. The car goes back to normal. When i pedal after a red light. It goes much faster and shifts gear faster too with less rpm.
This morning it even moved very slow just like when in idle with no revving (like 5km/hour) despite the fact that I was revving like crazy
What seems to be the problem?
Oil was changed by the seller. I checked it and looks yellowish not dark.