lie-o-meter - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 03-06-2011, 10:59 AM Thread Starter Rookie
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hey fellas, how can I get my lie-o-meter to read more accurate? When I was stock it was pretty close +/- 1-2mpg. Now with the mini and dpf delete the lom gets up to 30 when I first fill up and it never drops below 24mpg. When I do the hand calc. I am just about always around 16-18. I'm running stock size tires, so calculating the tire size I don't think will help the lom be more accurate. I know it's never going to be perfect but I would like it to be at least close. Any ideas?
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post #2 of 4 Old 03-06-2011, 01:36 PM
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I've got the same thing with mine. It reads about 6mpg about hand calculated.

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post #3 of 4 Old 03-06-2011, 02:29 PM Fanatic
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I just installed the SCT Livewire DPF/Cat delete a couple weeks ago and had the same issue, just not as bad. Mine was reading 20-21 mpg's the first couple of trips but here the last week or so, it seemed to have settled in to 15-17 mpg's. I hand calculated and its getting around 15-16 mpg's so thats close enough for me. I have had the tire size programmed since day one, as well. Give it a couple weeks and maybe it will correct itself like mine did??

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post #4 of 4 Old 03-06-2011, 05:11 PM
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I use the ScangaugeII for my MPG and other readings.
When my truck is stock the MPG is very close within 2%
When I program it with my Max Energy the fillup readings when I fuel up can be as far as 43% off.
The programing is not reprograming the fuel flow for some reason.
With the ScangaugeII I can calibrate at any fillup so that way accurancy of readings are maintained.

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2005, 6.0L, 6 Spd Std, 3.73 Rear End, F250SD, Extended Cab, 4 x 4 Long Bed. 2008 extension mirrors. GPS/TV/DVD/CD/Rear Cam/Radio installed, Max Energy programer by Hypertech, and Fuel Pressure Gauge. ScanGaugeII for 60 plus XGauges, and MPG. ELC Cat EC-1 Coolant, Pull a 39ft 15500Lbs 5th Wheel Camper Trailer. Mileage Avg is 20MPG, and pulling 12.6MPG.
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