The radiator should be full to the cap. If the overflow tank goes down and
the radiator is not full you have a leak somewhere. Check the oil for signs
of antifreeze and check the dipstick and oil fill cap for signs of mud which
are signs of it getting in the oil. Check all hoses, radiator, head gasket
for signs of leakage. Leaking internally could destroy your engine....


"rynniki" <rynniki@wmconnect.com> wrote in message
news:d01a7e73a12275b8a4b8ae9c89702274@localhost.ta lkaboutautos.com...
>I have a question what could be causing my reserve tank to keep getting
> low? it is between the maxium and mininum line... i checked my radiator
> and the antifreeze is up to almost the top of the lip where you see the
> fluid. the car doesn't run hot. the gauge is usually right before the
> middle on long trips. how do you tell if you need a new radiator? and
> should i get it flushed for the summer?
>