mixture of the radator fluid
This answer is possible but it is not correct and is a poor choice. There are a number of reasons why a car's engine overheats and the original question doesn't give enough information about the car and its overheating symptoms to deduce the answer to being a mixture of radiator fluid. It's not a good way to answer at all other than it being a guess.
The engine can overheat b/c the radiator is old and fill with rust/dus particles that clog it up and the engine as well as the hoses. It can overheats if there's a cooling fan and it's not being turned on at lower speed (bad relay switch or fan motor). It can overheat if it's low in coolant or that the water pump is not working well. It can overheat due to a bad/broken head gasket. It can overheat with trapped air in the cooling system that needs bleeding. When driving with AC on uphill for extended period of time, it can and prob. will overheat, etc. Many reasons for the overheat and to simply give the answer of mixing radiator is simply naive and dull. Do more research being being trigger happy with the fingers :)
Blown head gasket?
check the heater core stopped up radiator
You have not bleed the air out of the system after you installed the t-stat, causing the heater not to work and the engine to overheat. Use a coolant filler that screws into the radiator and get the air out
Change your thermostat.
Check the thermostat to see if it was installed correctly. They can get put in backwards.
I would be thinking it is a head gasket.
more than likely you need a new radiator for it, when you install it back flush the engine.
You could have a bad water pump causing no coolant flow, inoperable radiator fans, a coolant leak,............
Maybe cooling line is plugged or crimped Maybe cooling tank in radiator is plugged Install auxilliary transmission cooler
Check that the coolant fans are still working, then check out the water pump.
it is a hyndai that's why it is a hyndai that's why
The thermostat on a 2004 Chevy Venture is changed by draining the radiator, removing the upper radiator hose, and unbolting the thermostat housing. The old thermostat and gasket can then be removed and replaced.