My radiator has a small leak. Every once and a while I have to add a few ounces of coolant. I have not been overheating. The picture I attached shows where its leaking. Can I use an additive like Bar's Stop Leak or is that a no-no? I'll be bummed if I have to replace the radiator. Any ideas???
I vote radiator. Stop leak will plug up holes within your radiator too, and possibly in your engine block, and will block the circulation holes between the radiator and the coolant expansion tank. It's a no-no.
hoses are always a good idea to change, usually the return hoses are the ones that you should change, if you can only afford to get a few. but yes the rad has to go, stop leak is a bad idea, my mechanic says it actually will clog the rad up making the flow more restricted.
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