For those that have the mitsu. gauges installed, What is the temp gauge for? People always asked me what it was, but I can't seem to give them a straight answer.

 

The temp gauge is showing your oil temp. For everyday driving, I just use it to determine when my engine is warm and it's safe to start to push it a bit. On the track it can be a good indicator of when it's time to take it easy on the accelerator. Hope that answers your question.
-Paul