Hy-per Cool Cleaner & Super Flush, 11.5 oz, Pack of 4

Cleaned out a normal 180K mile Ford radiator & cooling system with original Ford Gold antifreeze in the system. Antifreeze was your typical SE region of US quality for Ford Gold at 180K. The deegas bottle was stained black but coolant looked well used but fairly clean. No over heating issues & no heater core issues. Drained system using drain in radiator, filled with water using water hose thru tank, cranked engine left drain open & water running. After clear water coming out of drain from system I filled & drained the system 3 different times with straight water & ran the engine to operating temp each time. With system having zero antifreeze, most oils & loose trash out system I then added the product. I followed instructions then I flushed system out with running water to see this product did remove some black particle in the system that water did not get out on its on. Plus done temperature test. Car did not have any heat problems. Temperature rose another 10° F coming out the vent. So in my area of NC that doesn't mean a lot but I've been in Minnesota in winter & 10° means a lot there.

I've used this product for many years always does a good job

Works good

Seems to have worked.

Worked well, i had a blown head gasket so there was oil in my coolant system and it got like 90% of it.

Flushed system with ease.

Just ordered more for future use. First time use was very successful in breaking down the gunned up crud in a 308 ci Hudson motor and radiator, I have on an engine run stand.

Satisfied customer