Tom Hargrave wrote:
I've been nursing a leaky 1987 300SDL head along for almost 2 years now with an assortment of "head gasket plugging" products. I can say in my case that they work but with one side effect. They also tend to partially plug the radiator. This means that I can't drive the car during the hottest months because the temperature tends to rise.
They also tend to plug up heater cores. David Brodbeck '83 300D Turbo
