Hi ive got a 99 GS with 50,000 mile with stage 2 star kit, and internals, for some reason my car overheats and always throw coolant out of the reservoir, gotta keep refilling, ive changed my thermostat, and still same thing, has anyone experienced this before? If yes need help asap thanx

PJJ

does the coolant spill out from the reservoir?
how long till it over heats?
if not you may have a dried out-cracked rubber pipe leaking the coolant (even it its small) causing the reservoir to be empty.
do you see white smoke? if you do, most probably its spilling all over hot areas and evaporating.
try starting the car cold, and watching the engine bay for leaks as the car warms up.

Looking to buy 4G63