hey guys, i drive an ek4 as most of you know since i ask so many questions, and my car seems to take a long time to get to operating temperature (on the meter on my dash anyway) i drive about 20kms and its only just on or a little bit past the "C" .. and also say im driving it goes up to almost operating temp and then a little later itll drop down a little etc. One time i was driving quite far and it went up to operating temperature and then i gave it a little vtec n had a little fun and it dropped back down to 1/4 could soemthing be wrong with my thermostat or the temp sensor or just the gauge on my dash?

thanks for any input guys