pula? green ang coolant eh... baka may kalawang na kasama. if this is the case, talagang kailangang palit ka na ng radiator.
AFAIK, yung Toyota Extended Life Coolant, pula yung kulay ng coolant, so there may be brands na kulay red na rin. But I like the traditional neon green though. Parang radioactive kasi ang dating, hehehe