1.5 years later and the head gasket repair was done a while ago and I had a hunch that goop still exists, so I put a magnet under the radiator cap so see what I could skim from the coolant.
Also my water pump is making a racket after only 3k miles, I think the contamination may be related to replacing water pumps frequently.
Also my water pump is making a racket after only 3k miles, I think the contamination may be related to replacing water pumps frequently.