I have 1970 GTO RAIII with oem heads, 4 core brass radiator. I filled it up with distilled water and one bottle of "wet wetter" and i would like to add a bottle of "Lucas super coolant," but their website said:
"For street vehicles requiring freeze protection, add 1 bottle to 50/50 mix. For racing and high performance applications, add 2 bottles to straight water coolant for maximum temperature reduction. DO NOT use distilled water unless mixed with 50% antifreeze."
I am not worry about the antifreeze cuz the temperature where i live won't go below 38 degree in the winter. so can i add it? Or should i put new distilled water or tap water with 2 bottles?