To reset the oil after changing, turn key on , but do not start. Then press gas petal to the floor three times. You will hear a ding ding (bell tone)and its done. It tells you how to do it it the manual, but its wrong. They are giving directions as if the H3 has "on board computer" which it doesn't. That's kind of odd too since my daughter has a Chevy Cobra thats got the computer. Good luck.