Attention! If oil gets into the cooling system circuit, it is necessary to flush the radiator and the radiator expansion tank with special cleaning agents.
Flushing the radiator of the cooling system must be carried out in the following order. Remove the radiator of the cooling system and the expansion tank of the cooling system, if installed separately. Prepare about 2 liters. cleaning solution. Fill the radiator and radiator expansion tank and shake well for several minutes until all traces of oil are dissolved. Drain the solution. Thoroughly flush the entire cooling system (by setting the heater control to «Warm») hot water, changing the water several times.
Check drained fluid (water) for traces of oil. If necessary, repeat the process until all traces of oil disappear. At the end of cleaning, fill in the coolant, after checking its density.