Fuel economy gauge question - Honda HR-V Forum
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post #1 of 15 Old 12-12-2016, 12:14 AM Thread Starter
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Fuel economy gauge question

i have noticed when braking or coasting to a stop that the fuel economy gauge goes to the max.(in canada 20 l/100km, which is very poor economy) before dropping to zero after stopped for a few seconds.
Has anyone else noticed this or does anyone have any ideas.
I don't think it is serious but considering the gas pedal is not being pressed it seems unusual.
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post #2 of 15 Old 12-12-2016, 12:47 AM
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When the car is moving and not using fuel. The MPG is infinity.

What you are seeing is normal.
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post #3 of 15 Old 12-12-2016, 02:27 AM Thread Starter
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when talking l/100kms a lower number indicates good mileage, so infinity would be 0.
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post #4 of 15 Old 12-12-2016, 03:23 AM
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That's strange. If that's the max, what's the lowest? In the states, it goes up to 100mpg I believe, which is about 2.35 l/100km. Are you sure it's 20 l/100km and not 2 l/100km?
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post #5 of 15 Old 12-12-2016, 01:01 PM
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You are driving at 50km/hour in town, maybe at 7 l/100km
The light ahead turns red, you take your foot off the accelerator

The HR-V goes into 0 l/100km mode, adjusts the CVT to minimize the drag, while using the cars momentum to turn the engine with zero fuel. To do this your vehicle speed must be over 20 km/hour.

Your car slows from drag, or you braking as you approach the light.

As your car speed drops below 20 km/hour, there is no longer enough speed to turn the engine, the engine reintroduced fuel.
As your speed is very slow, and fuel is being used, the l/100 km spikes up.
You can actually feel it kick in.

This is normal, in my mind, a brilliant solution that helps squeeze out a few more mpg around town.


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post #6 of 15 Old 12-13-2016, 10:12 PM Thread Starter
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The gauge goes from 0-20 l/100km. The HR-V's rated fuel efficiency in Canada is 8.8 l/100km (city),7.2 (hwy) and 8.1 (combined)
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post #7 of 15 Old 12-14-2016, 03:43 AM
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I think this is the reason the USA didn't go metric.

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post #8 of 15 Old 12-14-2016, 04:39 AM
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The USA has always had metric currency. Wise. What went wrong when yous opted to remain Imperial? 37/64 ??? Madness! The metric system is infinitely superior. I have used both and know which works better.

The usual way to express metric fuel consumption is l/100km but it can also be in km/l. eg. 25km/l is 4l/100km. I prefer the former method but can make sense of both.

Another advantage of the metric system is that it is understood universally. No US and Imperial miles and gallons etc.

BTW 110V systems are dangerous compared with 230V ones. The USA is often wise but not always!

Graham in NZ
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post #9 of 15 Old 01-11-2017, 09:06 AM
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Quote:
Originally Posted by GrahamA View Post
The USA has always had metric currency. Wise. What went wrong when yous opted to remain Imperial? 37/64 ??? Madness! The metric system is infinitely superior. I have used both and know which works better.

The usual way to express metric fuel consumption is l/100km but it can also be in km/l. eg. 25km/l is 4l/100km. I prefer the former method but can make sense of both.

Another advantage of the metric system is that it is understood universally. No US and Imperial miles and gallons etc.

BTW 110V systems are dangerous compared with 230V ones. The USA is often wise but not always!

Graham in NZ
Only US, UK, Australia and some old colonies use mpg.
The rest countries use lt/100km.

LT/100km is inversely proportional to mpg, which means when a unit increases, the other unit decreases.

Unfortunately, the mpg system has a limit which is number one.
And there is huge difference (inaccurate consumption) in consumption when mpg approaches to one.

1mpg=235.215 lt/100km
2mpg=117.607lt/100km
3mpg= 78.4049lt/100km


...
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post #10 of 15 Old 01-12-2017, 11:11 AM
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Originally Posted by robertmoore View Post
Only US, UK, Australia and some old colonies use mpg.
The rest countries use lt/100km.

...
Miles per gallon (mpg) is commonly used in the United States, the United Kingdom, and Canada (alongside L/100 km)
https://en.wikipedia.org/wiki/Fuel_e...in_automobiles

From what I"ve seen, the HR-V's in UK and Australia are all l/100km.

Funny read from the web link, the state of the art CVT transmission going into the HR-V, was invented by Leonardo da Vinci
He created the design in 1490!
Later patented by Daimler & Benz in 1886.
http://cvt-transmission.blogspot.ca/...t-for-cvt.html
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Last edited by ddemetra; 01-12-2017 at 10:33 PM.
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