ScanGauge II 3-in-1 Compact Multifunction Vehicle Computer with Customizable Display

Product works very well, but is built a little on the cheap side. It would be nice to have something a little better than velcro to hold it in place...something that allowed angle adjustment to keep the sun from reflecting. It would also be nice to have the cable connect on the left side too. So far the device has caused me to modify certain aspects of my driving habits...this has resulted in about 4 miles per gallon increase in my MPG. I really haven't had time to play with much of the other stuff. I use MPG (live), Throttle Postion, Speed and RPM in the gauge mode most of the time. These seem to be the primary pieces of info that mean something to me going down the road. Fuel economy is not as accurate as I had hoped...it seems to vary on the "adjustment" percentage from fillup to fillup by about 3 to 4 percent. Still it lets me see exactly how my behavior on the throttle affects my mileage on the road.

Pro:
Easy to use, Need to setup for correct reading.

Con:
No decimal point for some setup selections.

I have owned my ScanGauge II for almost a year now and overall it has functioned pretty much as advertised. I say "almost" because it had an initial problem with communicating with any vehicle I tried to scan. I sent an email to the company and received a reply within hours asking for an address they should ship the replacement to. They apparently had a bad batch and were very responsive in correcting the problem. The replacement has worked well, until recently. It has developed a problem with the average MPG and at times the display will indicate "9999". I have also found that it will not communicate with another vehicle I own. As bad as these problems are, they are not the big problem I have run into. The support for these devices has apparently gone away. I have been attempting to contact the company for 3 weeks now and have received no response whatsoever. It is really disappointing to see a company that has a reasonably good product feel that it does not need to provide customer service. A year ago I would have recommended this device to anyone that asked. Today I would recommend that you stay clear of ANY product from Linear-Logic.

It has been 5 weeks since I installed and used the ScanGauge on my 2001 Diesel VW New Beattle. The install was a simple as the instructions and others online indicated. Placed the unit up onto of my dashboard and cover it with a towel during the summer heat. This helps with the adhesive.

Following the instructions I fine tuned calibrated the unit using my GPS indicated speed to adjust to the tire size, not off enough to worry about. I also adjust the fuel used by refilling from the same pump each time and allowing the nozzle to simply shut off and not pump more. That has been a significant change in the accuracy of the unit as it was off nearly 20% in overestimating my fuel use. After three refills the unit seems more on the mark with my actual fuel use.

While using the unit I initally tried the X gauge however the instant fuel used was not as useful as when I simply starting using only the calculated MPG per trip. This now has helped me to realize at least a 10MPG per trip improvement as I manually shift at the more appropriate times and smile quite large when after driving to or from work and see a typical 50+MPG for the trip when previous to the gauge I would often fill up to 35 MPG per tank.

For a gadget geek this is nearly what I wanted, would be nice if the unit allowed the X gauge to reflect trip MPG however using the trip mpg is all I REALLY need.

My brother asked me to buy him the ScanGauge II for his birthday. This is his review:

"ScanGauge is helping me get 4-5 MPG better than I was. It is training me to drive more fuel efficiently. In my daily commute to work, about 45 miles, I've increased my MPG from about 20 MPG to 24-25 MPG.
I've found that maintaining a steady speed is the main way to higher MPGs. Also, coasting where possible really runs up the MPGs. It's the immediate real time feedback it gives that puts you in control. It's fun to drive to work to see how high I can get the MPGs to go...Thanks, A Happy User.