check water level
does your car gurgle on start up when cold
is your heater cold
is your low coolant level light on (bhg light, birdcage, roman building etc) far left of dash
the red & green is actually toyotas coolant... and someone has added green coolant... it is extremely extremely rare for a radiator to do that
but i would say due to the amount of times it has now been overheated you may now have a bhg
do not put a metal head gasket on if you are not going to prepare the block
get a stock toyota gasket & use arps
good luck
