[Black widow]

Originally Posted by NSean

For my car I have the MPG gauge rather than the water temp gauge, so I have a Raspberry Pi connected to the OBD port with a little touchscreen mounted on my air vent.

Works perfectly for letting me know when things are up to temperature and for displaying other stats as well. Cheap solution but quite tech-heavy.

I can post a picture of it if you're interested in doing a similar thing.

Yes please post a pic!!