Embrace the Future of Cooling with Black Coolant A Comprehensive Guide

Black coolant can be caused by deterating radiator hoses, crud in the cooling system, and oil getting into the coolant. Take the cap off and drive it around a bit,,then open hood and do you see bubbles,or is the coolent getting pushed out,,if no,then drain and flush coolent tank. If your coolant is dark, looks brown, or you see particles floating around, it's time to for a flush and fill. Save at your local NAPA AUTO ... Black could be aluminum corrosion since most of the system is made of that. Might be it never got properly rinsed out, I'd be doing it again.... Black cooling water usually means blown head gasket. Get a mechanic to put in UV Blacklight fluorescing chemical, run the engine, then have the mechanic come ... Coolant going black is an indication that the coolant was not mixed before it went into the engine....if it is a 50/50 mix it should be done ... Yup. Oil pressure is 80+ psi, water pressure 15 psi max. So... generally when there's a breach between the oil gallery and the coolant passages ... I have a black clay like build up in my radiator cap. I cleaned it off 2 days ago and it's back. Its not the common brown sludge that you see when dexcool goes ... In general, black coolant may be caused by a few issues. There are different ways to diagnose each of the mentioned causes. The coolant reservoir isn't just an overflow like most cars. It's actually pressurized so potentially the black plastic is easier to make in the ...