Coolant Help

[redcjwing]

What kind of coolant should i top off my radiator with. I have to change my coolant temp. sensor and the way it looks im gonna loose about 1/4-1/2 gallon of coolant.

[wippenberg]

If you have antifreeze in the system, i recommend you to top it of with water, assuming that you are going to take care of the sensor and leak soon.
When you do, flush the system and use Factory coolent.