Antifreese degrades through time and dilution, and may not afford the same protection that it first did.
Check with ford dealer or you can buy antifreeze that mixes w/ any types of antifreeze - but check first or you can cause problems
Antifreeze will be leaking in the floorboard on the passenger side, there will be a smell of antifreeze through the vents.
A basic antifreeze tester
Doubtful !... The antifreeze is added to the radiator - to keep the water above freezing point. There is no way of the engine knowing how much antifreeze is circulating.
saftey feature, check the antifreeze.
You need to check for a leak.
You may have blown a head gasket, check you oil to see if the antifreeze is leaking into there.
antifreeze does not enter the engine at any time. locate and follow your radiator hoses and follow then and check for cracks or punctures.
Check Your Waterpump
CHECK YOUR THERMOSTAT.... AND GOOD LUCK
Check your owner's manuel.
check the antifreeze