Posted by John W. S. son of John S. [104.23.225.97] on Wednesday, August 20, 2025 at 12:40:38 :
In Reply to: Re: Goo in Radiator posted by Torvald [172.71.147.27] on Wednesday, August 20, 2025 at 00:19:50 :
CLR works well for the calcified deposits on and in the radiator as well. I would suspect any non-foaming detergent would break down oils and such in the system.