kung gusto mo makatipid, bili ka ng whiz coolant sa cash & carry. P150 petot lang per liter. coolant and anti-rust na sya. made in usa. actual location is inside the building where mercury drugstore is. it claims its designed to minimize/eliminate those deposits that accumulate from some formulas of other coolants. i used to use whiz in early 1990s pero switched to peak kasi mas mura noon. ngayon, whiz is cheaper na.
kung P300 per 2 years ang gastos mo, laking tipid nun versus spending for radiator replacement (thousands of petot). i never had to change radiators on 4 cars because i take preventive maintenance on them. not to mention the hassle kung mag-overheat yung kotse due to radiator problem. hope this helps.