Thread: White gunk in car radiator?

Originally Posted by mawzer308

If the coolant is as you say clean, I doubt it is contaminated with oil, usually very obvious when oil is present very milky coloured and sludgy. Possible calcium build up over the years from the water mixed with the coolant.
If your head is cracked or gasket is gone you will have overheating issues and either contaminated coolant or oil.

Hmmmm - I like the sound of this better than the post above you.
Coolant is nice and clean, as is oil. Never overheated or had any heating issues.

Will give the coolant a flush out and going to investigate if the trans cooler is part of radiator and reroute if it is..... might also get that head test done just in case.