THE CAR DOCTOR
Q. What do you think of a head gasket sealer called Blue Devil? I have a Cadillac with leaking head gaskets and, considering the age and condition of the car, can’t see spending thousands on repairs.
A. I recently had a reader try the Blue Devil product and so far the head gasket leak has been repaired. Just so you are aware, this is not just a “pour-in” product. You need to drain the cooling system, remove the thermostat, and add the product. Once the leak is sealed, you again drain and flush the cooling system, replace the thermostat, and add coolant. This is an ideal DIY’er project and, with the money back guarantee, you have nothing to lose but your own labor.
http://www.boston.com/cars/researchandadvice/2010/04/20/the_car_doctor/
