Do you have to drain the oil to change the oil?
Do you have to drain the oil to change the oil? An oil change needs at least the old oil to be drained out and the old oil filter removed and discarded. then only a matter of refitting the drain plug to the engine sump, fitting a new oil filter to the engine and filling the engine with the correct amount of oil of type recommended for the vehicle. Is car oil supposed to be thin? If your car engine oil is too thin, the metal to metal contacts will take place to create a wear and tear. Your engine...