what the chance of blue devil glue repair working in my car
check out youtube there is all kinds of this temp head gasket quick fixes and how to use it.
Another good one is Bars Leak. It's been around for decades and is an approved and proven product. I've used it several times with good success. My Grand Prix started leaking 4 years ago and all I've done is add Bars Leak twice. It still seeps a bit and I add coolant once a year, but I haven't changed gaskets and hopefully won't have to.
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