RxAuto / Stay away from that stuff
I have a Cadillac STS and paid alot of money for a ThermaGasket Head Gasket Sealer product and it totally clogged my radiator and engine!!! Stay away from that stuff… They didn’t even return my calls for almost 2 weeks!!! That company ThermaGasket (AKA) rxauto.com are horrible. They told me they would not be giving me a refund or helping to pay for a new radiator. They were very disrespectful to me and hung-up on me! Bad product, bad people!!! Warning Stay Away!!!