Quote Originally Posted by Gian Paulo View Post
Mine is more than a decade old. Is it advisable to replace or repair radiators? What maintenance is required if its still dont have visible leaks, Are there antirust additives that will do? TIA
If you have maintained the factory anti-freeze coolant quantity and quality that is usually green and containing ethylene glycol then you should not need to do anything. If you have engine temps that appear to be climbing the very first suspect on a 10 year old vehicle is the engine thermostat. If you have an electric cooling fan vs. a belt driven cooling fan the thermal switch in the radiator may not be turning the cooling fan on. That would cause the car to be hot in stop and go traffic but run pretty much at normal temps on the open road.