Actual vs Indicated MPG
#152
07-16-2018, 05:31 PM
#154
07-16-2018, 05:54 PM
#156
07-16-2018, 06:14 PM
Wish we could get a break down of the menu.
#158
07-16-2018, 10:25 PM
[Display l/100km] / [Calc l/100km] x 1000 = nnnn - Metric
I am guessing the Correction Factor should be between 750 and 1250.
For XLT 4.2 inch Display:
Engine off. Press and hold OK Button on the left side of the steering Wheel. Turn the ignition on Accessory mode only. Do not turn The Engine on. Hold for about 5 sec until "Engineering Test Mode" appears. Turn the Engine on and go through the menu pressing and releasing OK Button. When "AFE Bias 1000" appears press and release OK. Using Left and Right change 1000 to the Number You calculated. Press OK. Actually the steps how to correct the Numbers appears on the screen once You reach AFE Bias. To leave Engineering Mode after You are done just turn the engine off.
For Lariat and up 8 inch Display:
Engine off. Press and hold OK Button on the left side of the steering Wheel. Turn the Engine on. Engineering Test Mode appears instantly. Release OK Button immediately. Then the same Procedure like XLT.
Last edited by agmbg; 07-17-2018 at 10:19 PM. Reason: Incorection
#159
07-17-2018, 09:20 AM
Cargo Master
I think your calculation formula is incorrect.
Mine is consistently off 1 mpg. I divided the display (20.2) by actual (19.2) and multiplied by 1,000. The value of 1052 entered added 1 mpg to the lie-o-meter. If I divide the actual by the display, the value generated (950) should lose the 1 mpg on the display and be correct.
can someone confirm?
Mine is consistently off 1 mpg. I divided the display (20.2) by actual (19.2) and multiplied by 1,000. The value of 1052 entered added 1 mpg to the lie-o-meter. If I divide the actual by the display, the value generated (950) should lose the 1 mpg on the display and be correct.
can someone confirm?
#160
07-17-2018, 09:38 AM
#161
07-17-2018, 11:37 AM
#162
07-17-2018, 07:37 PM
I think your calculation formula is incorrect.
Mine is consistently off 1 mpg. I divided the display (20.2) by actual (19.2) and multiplied by 1,000. The value of 1052 entered added 1 mpg to the lie-o-meter. If I divide the actual by the display, the value generated (950) should lose the 1 mpg on the display and be correct.
can someone confirm?
Mine is consistently off 1 mpg. I divided the display (20.2) by actual (19.2) and multiplied by 1,000. The value of 1052 entered added 1 mpg to the lie-o-meter. If I divide the actual by the display, the value generated (950) should lose the 1 mpg on the display and be correct.
can someone confirm?
#163
07-17-2018, 09:29 PM
Fleet Mechanic
I am very sorry!!! I was so excited to share this. The formula in my posting is not correct. The correct formula is:
Display MPG /Calc MPG x 1000=nnnn
Example: 20.0 MPG displayed, 19.0 MPG Calculated
20.0/19.0 x 1000=1052.6315
Correction is 1053 or 1052. The Choice is Yours.
Mine was 897. 14.0/15.6 x 1000=897.4358 I use l/100km
Works the same way with MPG or I/100km
I am guessing the Correction Factor should be between 750 and 1250.
For XLT 4.2 inch Display:
Engine off. Press and hold OK Button on the left side of the steering Wheel. Turn the ignition on Accessory mode only. Do not turn The Engine on. Hold for about 5 sec until "Engineering Test Mode" appears. Turn the Engine on and go through the menu pressing and releasing OK Button. When "AFE Bias 1000" appears press and release Down. Using Left and Right change 1000 to the Number You calculated. Press OK. Actually the steps how to correct the Numbers appears on the screen once You reach AFE Bias. To leave Engineering Mode after You are done just turn the engine off.
For Lariat and up 8 inch Display:
Engine off. Press and hold OK Button on the left side of the steering Wheel. Press push start Button only (Not Brake Pedal) to turn to Accessory Mode. Once Message “Accessory Mode” appears press the Brake Pedal and turn the Engine on. Engineering Test Mode appears instantly. Release OK Button immediately. Then the same Procedure like XLT.
If You are not successful first time try again. It should work and is not going to hurt anything.
Once again: I did it on my 2018 Lariat 502A EB. It could be little different on older trucks but similar enough to figure it out.
Display MPG /Calc MPG x 1000=nnnn
Example: 20.0 MPG displayed, 19.0 MPG Calculated
20.0/19.0 x 1000=1052.6315
Correction is 1053 or 1052. The Choice is Yours.
Mine was 897. 14.0/15.6 x 1000=897.4358 I use l/100km
Works the same way with MPG or I/100km
I am guessing the Correction Factor should be between 750 and 1250.
For XLT 4.2 inch Display:
Engine off. Press and hold OK Button on the left side of the steering Wheel. Turn the ignition on Accessory mode only. Do not turn The Engine on. Hold for about 5 sec until "Engineering Test Mode" appears. Turn the Engine on and go through the menu pressing and releasing OK Button. When "AFE Bias 1000" appears press and release Down. Using Left and Right change 1000 to the Number You calculated. Press OK. Actually the steps how to correct the Numbers appears on the screen once You reach AFE Bias. To leave Engineering Mode after You are done just turn the engine off.
For Lariat and up 8 inch Display:
Engine off. Press and hold OK Button on the left side of the steering Wheel. Press push start Button only (Not Brake Pedal) to turn to Accessory Mode. Once Message “Accessory Mode” appears press the Brake Pedal and turn the Engine on. Engineering Test Mode appears instantly. Release OK Button immediately. Then the same Procedure like XLT.
If You are not successful first time try again. It should work and is not going to hurt anything.
Once again: I did it on my 2018 Lariat 502A EB. It could be little different on older trucks but similar enough to figure it out.
I adjusted mine based on a lifetime LOM reading of 19.6mpg and a hand calculated lifetime 18.3mpg. I’ve never reset my Trip 1. The adjustment actually changed my Trip 1 to 18.3mpg....I didn’t realize it would change historical info. Very cool.
Note, your original formula of dividing actual (hand calculated) mpg by the truck displayed mpg....then multiplying by 1000 is the correct order of operations.
I’m traveling this week in my truck and am looking forward to refueling so I can see how much more accurate it is now.
#164
07-17-2018, 09:29 PM
I think your calculation formula is incorrect.
Mine is consistently off 1 mpg. I divided the display (20.2) by actual (19.2) and multiplied by 1,000. The value of 1052 entered added 1 mpg to the lie-o-meter. If I divide the actual by the display, the value generated (950) should lose the 1 mpg on the display and be correct.
can someone confirm?
Mine is consistently off 1 mpg. I divided the display (20.2) by actual (19.2) and multiplied by 1,000. The value of 1052 entered added 1 mpg to the lie-o-meter. If I divide the actual by the display, the value generated (950) should lose the 1 mpg on the display and be correct.
can someone confirm?
#165
07-17-2018, 09:46 PM
Thank you for posting that!! I did mine today and it worked perfectly once I realized that I needed to keep holding the OK button until I started the engine.
I adjusted mine based on a lifetime LOM reading of 19.6mpg and a hand calculated lifetime 18.3mpg. I’ve never reset my Trip 1. The adjustment actually changed my Trip 1 to 18.3mpg....I didn’t realize it would change historical info. Very cool.
Note, your original formula of dividing actual (hand calculated) mpg by the truck displayed mpg....then multiplying by 1000 is the correct order of operations.
I’m traveling this week in my truck and am looking forward to refueling so I can see how much more accurate it is now.
Last edited by agmbg; 07-21-2018 at 02:38 AM. Reason: Incorection