Sicked Bee

My Bumble Bee are having fever recently, high temp, but not everheating yet.

So today I open up the radiator and check, then only I found that I forgot to put

in this, Water Wetter from Redline. After poured in, I drove around to heat it up. 

And the fever is gone. But the meter gauge need a fix cause the needle keep fluntuate

between high and the actual temperature, scares me sometimes,  mood swing...I think