Re: Cleaning the oil cooler in a 1939 Super 8

Posted by Owen_Dyneto On 2016/3/12 18:20:36

The best and safest chemicals for use in cleaning brass and solder radiators are those that were used in commercial radiator cleaners of that era. DuPont's HD product used oxalic acid followed by a bicarbonate neutralized rinse.

This of course does not apply to oil cooler cores which is the subject here.