I have recently changed some coolant pipes on SWMBOs Jazz. It was due a coolent change anyway. When I bought replacement coolant I was supplied with the correct "Red - OA" type. However some years earlier it had been filled with blue. I understand the two shouldnt be mixed...?
How far do I have to go in relation to getting all the blue out?
Basically i have drained the radiator about 10 times but the block stays full, I have trickled water in the filler for about 15 mins with the engine running. The water coming out after a day driving around has a mere hint of blue, should I keep going until clear?