Sounds like you may have a bad head gasket
When mixed with coolant in the radiator it tends to look like a chocolate milkshake.
Coolant from radiator? Run engine to normal operating temperature -remove transmission dipstick and let a drop fall on hot part of engine, oil will "smoke" coolant will "sizzle" If so a bad radiator allow transmission fluid from cooler lines to get mixed with engine coolant
NO! That would be dangerous. Cars' coolant systems are pressurized, so if you open the radiator cap while the engine is running, it will spray HOT radiator fluid (water mixed with ethylene glycol, usually) all over you, and sometimes drain the radiator of coolant.
When you changed the Radiator did you flush the engine to remove the transmission fluid that the already mixed with your water in the engine block. If not that would explain the presence of the fluid in the coolant holding tank.
If you have coolant mixed with air bubbles coming out, you may have a cracked head or a bad head gasket. Have a pressure test done on the cooling system to verify there is a problem.
permanent type of antifreeze for aluminum engine and radiator mixed 50/50 green same as in autos
If you are loosing coolant from the radiator and you have an abnormal amount of white smoke from tailpipe after vehicle is at normal operating temperature. This may be an indication of a bad head gasket. Or if you notice coolant getting mixed with the engine oil or engine oil getting mixed with the coolant. Also a sign of a bad head gasket.
The 1999 Wrangler is equipped with an overflow tank. The amount iof coolant to add to the radiator is slightly less than 2 gallons. Be sure to use either a 50/50 coolant (pre-mixed with water) or a gallon of concentrated coolant mixed with an equal amount of water. You will have about 3/4 inch of coolant left in the container when the radiator is full. The overflow tank is there to hold coolant when the radiator gets warm and needs to expell some of the coolant. So just fill the radiator with coolant. You'll know when it's full.
You should fill a radiator with a coolant solution that is specifically formulated for use in automotive cooling systems. Water mixed with the appropriate ratio of coolant is typically recommended to keep the engine running at the right temperature and prevent it from overheating.
Mixing gasoline in the radiator can cause serious damage to the cooling system of the vehicle. Gasoline is not a suitable coolant and can lead to overheating, corrosion, and potential engine damage. It is important to have the system flushed and refilled with the appropriate coolant if gasoline has been added accidentally.
Hi it'slikelyto be oxidisation particles from the aluminium either block or radiator mixed with coolant.A good engine flush and coolantreplacementwould be a good idea.
The coolant has to be going somewhere. If you don't see puddles on the ground then the coolant is going through the engine via a bad head gasket or cracked head. Look for evidence of coolant muck (mixed oil and coolant) under the engine oil cap and on the engine oil dipstick. Have the cooling system pressure tested asap. The longer you continue to drive this vehicle, the more it is going to cost to repair.