I have tested my 2009 Ram 1500 4.7 with the Block tester and I'm assuming this is a yellow result,
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I do not see any other signs of the head gasket failure I want to know if anyone has opinions on the Blue Devil pour and go sealant I do not want to pull the head as I do not feel comfortable doing it myself and I have heard good things about this product. I would value any suggestions on using it as well My main concern is most videos I have seen are on non aluminum heads I heard it is a non flexible sealer which I guess is undesirable for aluminum heads

 

Snake oil. Sure, it my plug a minor headgasket leak, but, what else is it going to plug up........

 

honestly, i would only use a sealant like that if i were getting rid of the vehicle in the immediate future, because as mentioned they are known to plug up radiators/heater cores ect as well

 

I had tried blue Devils an lycus. Nothing good came out from using it.i have the same problem with my 03 Dakota. I am doing some research on fusion sealer.its suppose to be the best.an its good for aluminum heads.it cost about 130.00. I will post the outcome when i use it