Over the past thirty years, car owners have been arguing about whether to flush the engine when changing the oil?
Flushing oil. With this method, the used oil is drained and a special flushing oil is poured instead. Allow the engine to idle and drain the flush. They put a new filter and add new oil.
Five minute rinse. It is poured into the engine before changing the oil, thus mixing with already used oil. Next, they let the engine idle for five (or ten) minutes, drain the waste, fill in fresh oil and put in a new filter.
Flushing with which you can drive a certain distance. For 100 km of the run before the proposed oil change, the drug is poured, and during this run they try not to scorch much. Next is the standard oil and filter change.