l have to drain the coolant in a 2003 Mercury Grand Marquis LS, and l need to know theto the following questions please;

How much coolant does this radiator hold?

Where is the drain plug located?

What type of coolant does it take?

Thanks.

1to 2 gallons, half water, half coolant
opposite of lower radiator hose
gold

l off hand do not the volumne amt. so the drain plug is on the inside of the radiator facing the engine, is call the petcock valve. get two gallons of presitone anti freeze. when u put the antifreeze, u must first mix the antifreeze 50/50 with water. refill the radiator from the top radiator cap. pour the solution in slowly, until it is up to the cap. now.fill the resavior overflow bottle up 3/4 of the way, & run the car. u may see some antifreeeze dripping on the street, after u run the car for awhile. what is happening here is that the engine, now that it is hot, is removing all the air bubbles from the system, & u may have to add some more antifreeze the next day. when u check the water level in the over tank fill only to the cold line. do not over fill the bottle. u may have to do this for a few days until all the air bubbles r out. be sure when u r doing these that the heater selecter is on hot not cold. u need to get the air bubbles out of the heater core as well. & its. l hope that some of the info. l have giving you, will help u on this job. good luck.