Kinda stupid question, but oh well

I lost a bit of coolant recently when a hose sprung a leak after the install. Im just gonna throw in some water...I dont need to flush the system again do I? I can just toss some in right?

 

You'll be fine topping it off. Remember to use distilled water.

The less "coolant" to water mixture you can get away with, the better. Water acts as a better coolant than coolant itself. I run about 20% Prestone and 80% water since I don't need to worry about freezing temps.

Basically you'll want enough to fight corrosion and freezing.

 

Yes - distilled water only - don't want all the junk (minerals) in tap water in yer RADiator.