Re: Coolant temp
Some cars' temp gauges sit perfectly at 90°C all the time, other sit at 70°C when moving and rise to 90°C when stationary and others go up and down between 70°C and 90°C as the thermostat opens and closes. I fitted a new thermostat because my temperature gauge was showing 70°C on the move and 90°C when stationary, and it made absolutely no difference whatsoever. I tested the old thermostat and it started to open at 85°C and was fully open at 95°C. I can only assume that the temperature gauge is inaccurate, and as long as your temperature reading is fairly stable then your thermostat is working.