I have a serious issue with the radiator, it is full of mud and salt and it doesn't produce any warm air.
I used this product, of course, I didn't see any difference in heating, I give it 1 star and declare that it is completely useless because it doesn't do anything it promises, I removed the water collars and they were full of salt and dirt.
In short, okay the radiator's cooler didn't clean it, it needs a professional, etc., etc., it didn't even clean the pipes.
Money wasted.