Coolant reservoir loses coolant

[colt357]

I drive a 95 Mitsu. Montero LS (US ver.). I use whiz coolant (green) and hinahalo ko with tap water. Ung reservoir, pinuno ko sa full level (the one in the indicator, not literally "full"'). This was done when the engine was cold. After 2 weeks, I noticed nasa between low and full n un level ng coolant. Again, malamig un engine temp. Is this still normal??

Ung radiator, when I opened it, normal p rin sya. It's full of coolant, just on the brim level.

[niky]

May be a pinhole leak in one of the hoses. If you drive in traffic and your radiator is compromised or your radiator fans are turning too slow, it's normal to use some coolant... but it's best to check these as well.