Chaps,

I have a very small/slight coolant at the bottom right of my radiator. If I was to add a stop leak additive how would I do that since I do not have direct access to the radiator? I am not losing coolant really - topping up once every couple of months and then I'm not adding much. Is it worth paying $700 for a new radiator or should I just wait a little longer to see if the minor leak gets worse?

Cheers

Steve

 

The drain plug for the radiator is at the bottom right inside corner. Before anything else I would verify that is the source of the leak. Most of the major auto parts stores will 'rent' you a pressure testing kit. Pump it up to 20 lbs and check for leaks. If it is the drain plug I would try a couple rounds of pipe joint tape before replacing the radiator.

Personally, I would never consider using a radiator stop leak additive on my car.

 

Best to pressure test to check location ....

I would never use any stop leak product for this type of problem.


You use stop leak when you have a leak and the car is worth $100.00 - and you hope to get another month out of it.


With all the hoses, pumps, valves and matrix -- you don't want to use any stop leak.

 

It looks like it is the drain plug - plumbers tape sounds like a plan!