Holts Speedflush Coolant Flush, Universal Car Radiator Flush, High Performance Coolant Flush For Radiators & Cooling System, Quick & Easy To Use, Prevents Overheating, Suitable For All Cars, 250ml

Thank you 5*+ ⭐️⭐️

Does what it says and at a good price.

I didn't have any real blockages but used some of this in a 20-year-old car before I changed the radiator.Lots of crusty bits came out with the coolant - but I had to change it again as another job meant draining coolant (and reusing is just jank!) and more definitely came out again. As it happens, the NEXT time I did this it was basically clean; so I wouldn't worry - maybe do a second flush with only coolant/de-ionised water if you are using this.I can't say for certain but the same car has had heating issues since - only half the vents will blow heat. Probably unrelated as I did flush the heater matrix and nothing came out.

Great item to use

Not much I can say, done the job and was easy to do , good quality and was effective

Had mayo in my coolant due to head gasket failure. I followed the instructions and it definitely shifted more muck than a water flush alone, but I think it would be better if run in the engine for longer and at higher temperature to shift any oil stuck. But cheap price so I'll probably buy more and give it another flush when I do the oil next.

Does what it says

Does the job well , would recommend