What kind of liquid is used in liquid filled gauges?
Its not water is it? Because that would be bad in the winter.

What type is the B&M Fuel gauge? It doesnt say on their website and Ive searched.

 

I think the B&M is mechanical...can anyone give us some examples of a liquid type gauge?

 

Summit makes a liquid filled gauge. I dont know of any others.



I assume liquid filled gauges are better? Why?

 

Liquid-filled gauges are mechanical. There's a sealed fluid inside the gauge, and usually inside the tubing leading over to the process being measured. Then there's a seal diaphragm to keep the seal fluid from leaking out & mixing with your engine oil or whatever.

Usually the seal fluid is some kind of oil. I didn't know automotive gauges were available like that. I've only seen industrial process-measurement instruments like that...

Maybe what B&M really means is that their gauge is intended to be compatible with engine oil being inside the gauge itself.

HAHAHA - I just saw what Muckman posted. Now I get it... They probably do that do dampen any wild vibrating motion of the needle.