Re: Leaking Head Gasket

Posted by DavidM On 2017/12/30 16:32:55

I mis-read your post as the additive cost $2200. I have only ever heard negative experience with these products, despite the claims, when used in such a demanding application. My own experience was with a 1920's Packard that had a hairline crack in the cylinder block between two valve seats between adjoining cylinders. The crack had been metal pinned and still leaked slightly . An additive in the water sealed it for about 3-400 miles.
Do you recall the actual additive that you used?