Does anyone know what type pf sending unit is used? If you know the sending unit (I think voltage range is really the only important detail) then you should be able to wire the OEM sending unit to any gauge that is compatible. If the sending unit is a "dummy" sending unit (only sends a cold/hot signal) then the gauge you use wont help. Need more info! And out of curiosity, being a dummy unit, how does the OEM gauge climb from cold to operating temp slowly? Seems like a dummy unit would be either all the way cold or almost immediately at operating temp once the sending unit gave it the signal. Feed my brain!