hi, i changed my thermostat two weeks ago because it was working cold (around 65-70)
with new thermostat, i didn't see any problem for two weeks, it worked between 80-92.
But today, i drive around 10 minutes and then stopped while the engine is working, the car was working at 800-900 rpm around 5 minutes, i stared at the termostat , the degree was increasing very slowly , first it passed 90 and continued to increase up to almost 110 (the line which is between 90-130). I was wondering when the temperature will start to decrease.But whenever it touched 110, I was worried and stopped the engine. Waited for 15 seconds and restarted the engine, it was around 108(just below the middle line) and suddenly decreased to 70 in a few seconds.
Is it normal to touch 110 while working gear N? The termostat is brand new with two weeks, i assume it should work properly. ( I am not sure if the middle line is equal to 110, maybe it is 100???)