Unleash the Power of Black Coolant Improve Your System's Efficiency

Easy way to improve underhood aesthetics · Available in your choice of polished aluminum, wrinkle black, or wrinkle red finish · Made from ... I would try a little dishwasher soap (low suds) for a flush. Any time I have seen black it was from either a combustion leak or a oil cooler ... Over 12 week blackish SOOT build up in Coolant tank no diesel smell, coolant loss 100 ml coolant Clean. DPF burn temp okay data log engine temp okay 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 the coolant is black it could be engine oil in the cooling system...:doh: They still use the stacked plate heat exchanger on the 6.7L. So the ... 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.... Designed to install over your F-150's factory coolant overflow tank, this Cover will add rugged styling to your engine bay. After some digging, I noticed my coolant is thick and black and there appears to be a leak out of the seams of my expansion tank. Coolant can get pretty nasty when it's old, especially Dexcrud. That just means the system could use a good flushing and new coolant. As long as ... The coolant is starting to turn from BMW blue to black. In the past as the coolant has deteriorated it's turned more of an orange color.