Not infrequently the last service record is lost or forgets when it last changed the oil. For second-hand buyers, sometimes the car purchased does not have a service record, then how do you know whether to change the oil immediately? On the other hand, you might also want to learn more about the available oil changing prices at a Walmart Auto location near your area.
To be sure, check the quality of the car’s engine oil. Notice if the car oil has changed color. If this happens, the replacement must be done as soon as possible.
If when checking the oil it is pitch black and gives off a rancid odor, it indicates that the quality is not suitable for use. The color change itself is generally caused by the condition of the car that has traveled a long way.
Meanwhile, if you encounter oil turning into milky white with a fairly thick viscosity, that means the liquid has been contaminated with water. Such oil change is caused by a problem with the engine.