On the speedo,
often it takes a good rap on top of the speedo
to get the needle to start registering.

 scott

One very interesting think I noticed on the list here is guy saying the
level sensor will give a false indication if the 50/50 ratio of a-frz /
water is off.

and the sensors don't last forever either.

personally i modify the circuit electronically to take the level warning
function completely out of the picture !