You can go to any parts house and for about $5.00 you can buy a tester. It is simple to operate.
Pressure test the cooling system Monitor antifreeze level
Typically a 50/50 mix of clean water and antifreeze will protect down to -34 degrees. Have your local auto parts store test your antifreeze.
You have a blown head gasket. Check the oil and antifreeze, they may have mixed. Have a mechanic pressure test your cooling system.
Pressure test system t determine where leak originates
Odds are you have blown a head gasket and the antifreeze and oil flow share the same gasket. As the gasket wears, the antifreeze mixes into the oil and vice versa! I suggest replacing your current antifreeze and do a full flush. Test it for a few days and test if you have oil again. A tell tell sign of a blown head gasket is black smoke (burning oil) or white smoke (burning antifreeze ) coming out the exhaust.
By Taste. Just kidding use an auto antifreeze tester
get a coolant system pressure test, there may be a leak in the heater core.
You may have a blown head gasket. Have a compression test and cooling system pressure test run.
Pressure test system to determine where leak orginates to determine fix
Call Around; Find A Radiator Shop or A Mechanic That Can Pressure Test Your Radiator. This Should Help
The dependent (responding) variable in this experiment would be the freezing point of the water-antifreeze mixture. This is because the freezing point is what the student measures and observes in response to varying amounts of antifreeze added to the water. Changes in the freezing point will indicate how the addition of antifreeze affects the freezing characteristics of the water.
Blown head gasket.