i am finally getting ready to see if this swede will run. i replaced the radiator and was trying to find out the correct coolant. i thought the radiator i bought was brass and copper. but looking at it, the construction seems to be aluminum. when i looked it up online using the part number from the box it says plastic tanks with brass/copper core. i bought it from carquest. but the thing does not look like any copper/brass radiator i have bought. the core and fins are all one color looking like aluminum. i know this sound silly but i have come along way with this car to have something lame like this blow it. thanks

benjamin