Oops..

I have been searching the forum for about a day or two now and i cannot find what im looking for.

In one of the various gas mileage threads, somebody mentioned a display that will give you an accurate reading of your mpg and maybe a few other things. As far as i can remember, this is an internal electrical gauge and would come in handy for be because i do not have the TRIP option on my Xterra-S. Something can be mounted on the dash or something...

Any clue? Anybody know what im taking about?

Let me know! Its driving me nucking futs!

Some people are using a product called Scangauge II.