[smokycamry]

I heard stock radiators on a '94 model camry ought to be aluminium, but on scratching the paint off the radiator core fins, I find a copper color instead of a silvery aluminium color. Could it be that I have an aftermarket copper radiator fitted by my previous owner? If so will I require the OAT type coolant/Toyota red coolant or am I better off using a good quality green type coolant after a full flush down of my cooling system?