Before l had the sensor replaced the gauge never moved at all,even on long journeys.
Now the gauge starts to move after about 3 or 4 miles and usually makes it to the 2nd white line after the engine has been running for at least half an hour. Don't know if it will go any furthur over on a longer journey. Will have to go for a drive to find out!!
My 2ltr 8v sometimes registers, noticed it this morning, drove from Sheffield to Manchester airport and on the way back got stuck in traffic through Glossop (as always)gauge was nugging 80, but by the time I was on the top of the Snake Pass it was down near the bottom of the scale. the Water temp gauge sits at about 85 ever since the termostat was replaced though the oil pressure gauge stops at zero for last year now and the trip meter won't go past 79 miles. All these faults and I still love it after 6 years.