Update by user May 21, 2020 Owner of Bars contacted me to add further insult to injury..Offered to refund me cost of product up to $50.00 for my trouble. After I spent over 500.00 dollars plus aggravation correcting the problem. Talk about sticking the knife in and twisting. Original review posted by user May 08, 2020 Major mistake using this product..Installed new radiator in 93 ford explorer 125,000 miles. installed as instructed being proactive. Tablets never dissolved as advertised. Product became like mud, clogging system, creating overheating problem..Flushed system three times,still couldn't get rid of it..Finally had to replace radiator again. Total cost of approx. 500.00 including aggravation.. It was a disaster and very costly for me.. User's recommendation: Do not Buy.