What type of antifreeze does the 2003 ford explorer use?

For the 2003 Ford Explorer You're going to want to use some kind of coolant that is A50/50 mix of coolant and water. It's important to keep that balance as having too much of one over the other can lead to damaged parts. The benefits of this combination of fluids is that You get protection from freezing temperatures as well as boiling and gives some protection from corrosion and rust. If Your levels are low just follow the min and max marks on the reservoir and add some more until You're up to the max. Make sure You let Your car cool down a bit before You touch the coolant cap because it can cause burns if the car has been running for a while. -