There are many vital-car needs for perfect maintenance to maintain a car and expand its life span. We previously highlighted the preventive maintenance that the car owner can perform without going to a maintenance-center. The important car parts and things are: engine oil, air filter and fuel filter, coolant, battery and brakes. Referring to the car’s engine oil, there is a screen that shows the condition of the oil. In addition, it shows its level, and this, in turn, dispenses with the traditional manual check of the oil. In turn, you can check the engine oil by opening the hood. Leave the car for a long time until it cools down. Then extract the size of the oil and know its level. In addition, you should check the extent of its viscosity and color. If it is sticky and golden or green in color, this indicates its quality. However, if it becomes sticky and becomes dark-black, this indicates the need to change it.