Autopowerz digital speedometer is the total mileage of the car, can not be cleared, you have to watch it for maintenance (basic use).Trip can be cleared, so you can calculate the temporary mileage. The most basic purpose is to calculate the fuel consumption by filling the oil as much as possible and then clearing it, the next time you refuel, try to fill it up, record the fuel. Volume, at the same time copy the mileage you recorded, oil/mileage x100 is 100 kilometers.
