My Vauxhall Corsa seems to be using too much water/coolant without any obvious signs of leaks.. My temperature gauge goes up but not as much as I think it should do. It's almost as if my engine isn't getting hot enough... 🤔

Did you test the head gasket? Or take out a spark plug to see if there’s coolant on it?

I'm certain it's not that. I've had a car with a head gasket blown before and there were loads of problems. This is only a minor issue that I can't figure out... the amount of mileage I do the car would have gone "bang" by how if it was...