Quote:
Originally Posted by Ford Man
I have a Scan gauge too and by adjusting the fuel usage percentage I could make it read any number I want it to. When I first got it and programmed the information (engine size, tank size, etc.) for my '97 Escort into it and checked it against real numbers (miles, gallons of gas) I found that it was off by several MPG. I still check it against real numbers and often find it's off by 1-3 MPG for the tank although I've had times when it came out exactly correct. That isn't an Enzo mothball ad that you keep referring to it's simply a picture someone has posted on the site. I think if Enzo thought/knew their mothballs improved fuel mileage and wouldn't harm the fuel system/engine they'd be marketing them in such a way to make the whole world aware of it, can you imagine what it would do for the sales of mothballs? Once again I'll add my research link.
http://www.smh.com.au/news/national/...252708319.html
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I guess it's my turn....
"Adjusting the fuel usage % I could make it read any number I want." Really? This is news to me (but I guess anything can be fudged to do anything you want). Why would I fudge data if I want others (with a ScanGauge?) to duplicate these ranges of numbers? I don't. I didn't even know you could do this.
"...it was off by 1 to 3 MPG for the tank." The ScanGauge folks might be interested in this....
"...although I've had times when it came out exactly correct." Really? What was different for these times? What were you doing differently? And, "correct"? What was your baseline method for "exact"? These people who think "correct" are assuming
A) all gas pumps display exactly correct numbers;
B) all refill points are exactly the same (geometry-wise & "refill" point-wise);
C) all odometers are exactly correct (the same drives operate the miles traveled wheels as the MPH wheels (or digital read-out triggers).
A) + B) + C) = correct?? As the famous movie line states "Who's on first?".
ScanGauge may not show a "correct" number for average (even the length of trip affects the "correctness" of the displayed average number) but it does show a delta MPG for the ever-changing real world. Temps change, terrain changes, traffic changes, humidity changes, trips are different ... it all affects MPG.