I do because I've seen it used repetitively in a Jeep pickup truck radiator and it worked but it always seeped out of the cracks and then my father would drop in another tube and off we go again. He was a busy guy with the farm and as a industrial firefighter paramedic so I never held it against him but when I got to driving and had cars I simply had the radiators replaced and was done with it.Anyone want to discuss radiator stop leak?
For years I drove a MG Midget. I over did the build orders to the machinist and ended up with 200 pound compression across all 4 cylinders. I had to dump in 1 bottle of 107 octane boost per tank of fuel to prevent the extreme run-on that near caused the car to drive away while I was not sitting in it. The mechanic that I eventually found that was great and made my car a excellent daily driver did the old school method and hand made a extra thick copper head gasket and that solved the compression issue. Installed a extra high capacity radiator for the overheating issue and tuned it so that it passed the air-care pollution regulations. The octane boost 107 stuff worked very very well.