It its dead on I want one.

 

http://www.scangauge.com/

$169.95 with shipping included!

*EDIT* does not work on 04.5 - 05 Dodge Diesel trucks.
http://www.scangauge.com/support/Com...Vehicles.shtml

 

bastards... (no workie on '05) I found it for $159 elsewhere...

 

oh im sure resellers will have it a LOT cheaper, but to get the ball rolling, I was quoting the manufacturer's price.

 

You can calibrate it every fil up if you seefit. But I got my calibration for both vehilces here in the yard. Like my truck is 3% and Mom's 96 Dodge Ram 1500 gasser is 233% and they are DEAD ON. The amount of fuel you show consumed is that exact amount you should pump back into the tank. (If not time to re-cal). Something the "Overhead Idiot" can't do...

As for me it helped changed my driving habits and now I'm breaking the 21.7 MPG mark on my last trip. Here is the stats from my ScanGauge II.

21.7 MPG
17.6 Gallons Used
17.3 Gallons Remaining
385 Miles Traveled
375 Miles Remaining To Empty
9.4 Hours of Engine Run Time
9.3 Hours of Fuel Remaining
40 MPH Average Speed (Cruise Set at 55 MPH)
$75.90 To Fill the tank

To see the pics from ScanGauge II here is the link to photobucket.
http://s143.photobucket.com/albums/r...0II/Postfalls/

I'm so close to dead on that my fuel gauge even showed 1/2 a tank remaming (35 Gallons / 2 = 17.5 Gallons). The miles traveled also match the odometer on the truck too. I basically filled in Lewiston, ID and drove to Post Falls, ID and spent the night and seen some friends and return back to Lewiston, ID 385 Miles later and only burnt a half tank! Right on!