[SuperHart]

There are a gazillion posts on this Board covering just about every conceivable scenario of this topic. Generally, drill a 1/8" hole in the backing plate of your thermostat and install the hole at 12 o'clock. That will prevent trapped air from hanging around in the water jacket of your intake manifold. I recommend jacking up the front of the car before filling the radiator to tilt the engine downwards. Make sure that your coolant filler neck is at the highest point of your cooling system. Carefull fill the radiator with a 50-50 mix of antifreeze and water. When full, let it sit for awhile to allow the air to be displaced into the radiator and then repeat the fill routine. If you have a heater with a shutoff valve make sure the shutoff valve is in the open position. Keep adding coolant/water mix until the level stays put. Cap the radiator and lower the car. Start the engine, run it to full temp for several minutes and then allow to fully cool. Uncap the radiator and add more coolant mix if needed. That should do it. If you have an overflow can fill that about half way with coolant mix. I recommend using a radiator cap that will allow coolant to be sucked back into the radiator from the overflow can during cooldown. I use one and never have to uncap my expansion tank. I merely check the level in the overflow tank occasionally.