You would think that this would be easy. 1995 Altima is loosing radiator fluid. The only area thats wet is around the overflow tank. All other areas are dry. I've taken the overflow tank off, cleaned it, filled it with warm water and red food dye...no visable leaks. I was thinking that the radiator cap might be at fault, but when the radiator and tank are checked, the radiator is down about a gallon and the tank is nearly empty. Am I missing something? I still suspect the cap.

Thanks for any reply... Ricardo Gates

You suspect correctly.-New rad cap pretty inexpensive-Paul

Check you oil to see if it is a whiteish foam. You could have a blown head gasket and the water is in the oil.