Calculated Mileage differers from Actual?
#21
Re: Calculated Mileage differers from Actual?
I had my 4th fill up this morning. Again, I took it to the filler neck. This time it was only 1.4 mpg off (dash gauge reading low). The last two tanks were exactly 2.0 off.
#22
Re: Calculated Mileage differers from Actual?
Originally Posted by dburanich
I started to check my calculated mileage vs the display and discovered it would almost never match sometimes over and sometimes under. This led me to believe that I am never filling up in the exact same manner. There are too many variables involved, incline at the pump, pumps varying, the only sure way would be to park at the exact same pump in the exact same spot and fill up until you can see the gas at the top of the filler. If you put 500 miles and your fill up can vary by only a half gallon (which is quite easy to do) it can affect your mpg reading by 2 mpg or more. I have since quit comparing and rely on the display.
So far, I have been calculating and recording the display number when I refuel.
#23
Re: Calculated Mileage differers from Actual?
Every non Honda I have experienced is always 5-10% higher on the trip computer reading as opposed to the acutual figure measured at the pump.
The only Honda I have owned with a MPG computer (2006 Odyssey) is consistently within 1MPG, and consistently displays a slightly lower number than acutal pump measured FE.
I have yet to check out the HCH, as I have not even filled it up as yet!
The only Honda I have owned with a MPG computer (2006 Odyssey) is consistently within 1MPG, and consistently displays a slightly lower number than acutal pump measured FE.
I have yet to check out the HCH, as I have not even filled it up as yet!
#24
Re: Calculated Mileage differers from Actual?
My FE is off by approximately 2mpg when comparing the HCH II’s display compared to calculating the FE. The HCH II display is lower – to help try and eliminate possible differences in calculating (filling up to the same level each time), I used the same gas pump, filling at the same flow rate and the difference is around +2mpg in favor of calculating the numbers.
#26
Re: Calculated Mileage differers from Actual?
My lifetime average is now at 55.18 mpg. Using the dash numbers to calculate gas usage per tank and then calculating lifetime average, it is 54.25 mpg. This is a difference of 0.93 mpg (1.69%) through 4,479 miles and 81.17 gallons.
#27
Re: Calculated Mileage differers from Actual?
Hi,
I have a HCH II (2006) and I'm actually getting 5.7 mpg over what the reading says (I calculate 40.1mpg but the display say 34.4mpg)
Does anyone else notice this much of a deviation?
I have a HCH II (2006) and I'm actually getting 5.7 mpg over what the reading says (I calculate 40.1mpg but the display say 34.4mpg)
Does anyone else notice this much of a deviation?
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