There is only one thing that comes to mind on your problem of a milky coolant and it isn't good news. I am leaning towards you having a cracked block, a cracked head or a blown head gasket. What it sounds like is that engine oil is mixing with your coolant. There are only a few places where this can take place, which I have mentioned. I would run a pressure check on your colling system and watch for the pressure to slowly go down. Also look for milky oil contamination. I wish you the best of luck.
Check your dipstick to see if the oil has a milky appearance. If so there is coolant in your oil and you probably have a blown head gasket. If the oil looks normal and the fluid you described as brown looks the same as the color of your motor oil ( a bit dirty ) you have either blown a head gasket or craked the head. If your vehicle has an oil cooler you may have a leak in the lines to it or a leak in the cooler itself. There is also a type of refridgerant ( from your ac system ) that will turn brown when exposed to air.
Turbid
It will probably overheat. answer= thermostat will not open and will prevent the flow of coolant . which will in turn do damage to your engine
most likely red
to turn pink into a terra cotta color mix pink and brown and a little bit of red
You have water in your oil. Possibly from condensation. Run the engine only long enough to warm the oil and change it.
The head of an engine is cooled from passages in the block. When you blow a head gasket the coolant gets by the passages and into the combustion chamber. Sometimes the coolant doesn't go into the chamber but goes into the oil pan causing the engine oil to turn a milky brown color (looks like a chocolate milkshake).
In an emergency, yes. The correct type is preferred. Mixing types can causes the coolant to turn into a thick slime.In an emergency, yes. The correct type is preferred. Mixing types can causes the coolant to turn into a thick slime.
Possible trany cooler leak
Yes and it will turn milky
It might, or it might turn the coolant white or milky or it can end up being dark brown globs.
coolant draining back into resivoir or possible air pocket
The lower alcohol percentage causes some of the constituents to become insoluble.
I have seen it turn milky when a head gasket has deteriorated allowing coolant into the oil or visa versa. It can also be caused from overheating resulting in what we call warped head wich will act the same way as far as a synthetic break down of viscosity I'm not sure.
It usually means you have coolant in your oil. Cracked block or bad gasket?
it causes the color of the leaves to turn brilliant colors
When mixed with coolant in the radiator it tends to look like a chocolate milkshake.