Hello my name is Dave
My first suggestion would be to confirm if you have a blown head gasket. Here is a link to our tutorial to test for a blown head gasket. If you do have a blown head gasket you can use a sealer by pouring it into the expansion tank. If you are going to do this process I would recommend using Blue Devil since you don't have to drain and flush the cooling system to use it.
Be aware that the most important factor in using any sealer is to pour it in very slowly since a high percentage of the time if you have a blown head gasket you have some coolant in the exhaust, even if it is evaporating before it makes it to the exhaust tip where you can see it. The issue you can run into using a sealer is if you pour it in too fast it can get into the catalytic converter and clog it, so pour it in slowly.
If you can go through the steps in our tutorial and let us know the results we will be happy to guide you further to help you solve your problem. We look forward to hearing back from you and thank you for using 2CarPros!
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Wednesday, April 7th, 2021 AT 4:18 AM