The 3 most important indicators that tell you about the general condition of your car’s motor

Mutaym wrote to me  when I came to buy a new car, and the first thing that comes to our minds is to be assured of the condition of the motor or engine and its efficiency.
Although we are not all experts in the affairs of mechanics and car technologies, but there are some indicators that indicate the general condition of the engine, namely, “the gases rising from the exhaust,” 
so my angel website presents to its valued readers the most prominent indicators that tell you about the general condition of the motor, which are 
1- Emission of blue smoke :-
 

In the event that the car exhaust comes out in the form of “blue smoke”, this is the best evidence that the engine oil is completely burnt, in addition to the fact that there may be a leak in the oil circuit in the valves or pistons, or erosion in the walls of the cylinders.

2- Plumes of black smoke 
 

In the event that the car exhaust comes out in the form of “black smoke”, this color indicates the presence of burning fuel, and it may be an increase in the percentage of fuel present in the exhaust gases, and this may be due to the presence of carbon particles that accumulate in groups of gases emitted from the exhaust while driving At slow speeds, this may also indicate that the air filter is dirty and needs to be replaced.

3- white smoke 
 

In the event that the car exhaust is emitted in white, this indicates the presence of a quantity of water vapor in the exhaust gases, and it may be an indication of the combustion of the coolant, or the presence of a malfunction in the elements of closing the cylinder heads, or cracks in the engine body itself.