Hi all, had a pin holed oil cooler which I replaced, Van is a T5 transporter, I have flushed this loads of times. I have left Wyns extreme coolant cleaner in it for a few days and then flushed, tried dishwasher tabs etc. The coolant system is a lot cleaner but still not perfect. I have run mains water through system etc. Not sure what to do next or will I just have to live with cloudy coolant. I would like to get anti freeze and De-ironised water back in soon. All help would be greatly appreciated