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Hi All, does anyone know of a fuel consumption device that can be connected to a Clarity? I'm disappointed with the readings I get, always 5-6 mpg more than my true mpg, which I calculate after a fill-up (miles driven/gallons pumped). It seems to me, in this day and age, the calculations should be more accurate than they currently are. I would be interested in any thoughts from other owners or the actions they have taken. Thanks!
 

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I just use the numbers on the gas pump and call it good. I know that in-between gas fill-ups it's an estimate only.
 

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Hi All, does anyone know of a fuel consumption device that can be connected to a Clarity? I'm disappointed with the readings I get, always 5-6 mpg more than my true mpg, which I calculate after a fill-up (miles driven/gallons pumped). It seems to me, in this day and age, the calculations should be more accurate than they currently are. I would be interested in any thoughts from other owners or the actions they have taken. Thanks!
You didn't indicate if there are electric miles involved. The only way to get an accurate mpg calculation is if you were in HV mode the entire time between fill ups, as any EV driving will throw the mpg calculation completely off. That will be true both for the on screen display and in your consumption based calculations. Personally I am not willing to give up EV driving even briefly just to get an accurate mpg calculation, I just accept the published 42 mpg as being within the ballpark. In theory you could use the trip meter along with a notebook to keep track of EV miles driven between fill ups, then subtract the EV miles from the total miles driven. Some people have tracked their gas consumption on trips where they had long segments between fill ups in HV mode, that's the only time I would do it, although I haven't made any trips with my Clarity since I got it.

Yes it would be nice if the on screen information separated out EV driving from HV driving, but it doesn't, and trying to calculate it manually is a lot more work than just about anyone is willing to do, at least on a regular basis.
 

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Discussion Starter #4
Accurate MPG

Up here in New England I am in HV exclusively, so it would be easy to calculate, plus I convert any charging to equivalent gallons to get a true mpg measure. However, it would be nice to have more than a ballpark estimate while I'm driving between fillups.
 

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This is a brand new car to me but I have driven various Volts for 6 years, so I I know how it usually very accurately shows you the Electric vs. gas mileage remaining on the dash board. But yesterday when I started driving the Clarity in HV mode I noticed that the electric stayed with two or three miles of the starting 53, but the HV remains at 115, total range never dropped, was always around 166 - 169...... actually it has been stuck at 115 for a couple weeks, but I was running on all EV then so that made sense. And the electric usuage made sense. Now, after this drive , 70 miles later, I plug the charger cord in and it tells me I have 57.5 Electric miles availale, and yep still 115 on the HV for a combined range of 172.5. none of this makes any sense and sure means I cannot count on how many gas miles are available.
 
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