Mine was grey like emulsion paint. The strange thing was that i didn't lose any coolant. It was such an easy inexpensive job to do I thought I'd try it anyway and it worked. They all go cloudy when being used but should clear when cooled. If you flushed with petrol that may have caused it to go white if any was left in. Lampkins told me to fill with any engine oil, Put on stand and run through all the gears until the fan cut in and then drop the oil. Then fill with proper oil.