Hi. My gauge on left right of dash, looks like liquid with vertical line with 3 horizontal lines on top. (Looks like a thermometer with liquid on bottom, starts with 50, ends at 125.) Not sure what gauge is for. But all day, gauge has been in the red at the top. Car runs fine. Get out of car and can hear fan blowing very hard and loud.
Does this mean car is over heating? But car runs fine.
What does this gauge mean?