never seen this really, radiator and fluid are only a like 2 months old..

 

What kinda car is it on? I see it all the time on Subaru’s and its the Head gasket conditioner

 

fix a leak junk

 

sonofabitch

i've flushed that shti out 5 times that crap really stays in there. hg dont even leak i think the previous owner put it in the leaky radiator i replaced cause they were retarded

 

You'll never get rid of all of it it settles and is most likely chillin in every little place it can. Your best bet is take a high pressure hose and just spray in the raditor and other major areas you can reach.

 

They sell this stuff that is supposed to clean out the coolant system. That might help. You basically add it with water, let the car run with it in it, then drain later. I had some luck with it on a car I had that would always turn the coolant brown.

I did use that stuff once, and I'll always regret it now.

 

Prestone SuperFlush. or if youre really feeling froggy find your local CAT dealer...they got the good ----...its expensive though!

 

Oh and most of is chillin in the water pump/bitch pipe

 

drain rad, add CLR, run car for a couple days and flush out