November 9, 201411 yr Yeah... I know they're not supposed to fail on the EZ30, but apparently this one I just bought did. It overheated twice in the past two days, Bouncy temp gauge needle (never pegged in the red) some bubbles in the overflow tank but the tank never flooded over, and the coolant was drawn back into the radiator when it cooled down. I got a block tester and the magic blue fluid turned yellow when I revved the engine with the tester connected to the line from the radiator to the overflow tank. So before I approach the exciting prospect of yanking the engine and doing the HGs (I've done EJ25 and EG33 HG's before, but never EZ30s because they don't fail, right?) are there any of these "head gasket fix" additives that might work for an HC into coolant leak like I have? What about the Subaru coolant conditioner? BTW: The car has 170k miles.
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