Installing new thermostat-question

[HUM GOOD]

to install a thermostat, how much of the antifreeze should be drained? completely? Can it be installed without draining?

Thanks

[tomp]

I did it by removing passenger side fender well plastic and pulling hose. I tried to catch the fluid so I could re-use it, but lots of black stuff came out and I only had a few thousand miles. Decided it wasn't worth it and put in new AF.

[HUM GOOD]

Originally Posted by tomp

I did it by removing passenger side fender well plastic and pulling hose. I tried to catch the fluid so I could re-use it, but lots of black stuff came out and I only had a few thousand miles. Decided it wasn't worth it and put in new AF.

good point - Thanks

[IRA51]

I always flush and change the fluid when I change the T stat. that Dex Clog is some strange stuff ,can't decide if its good or not .