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Posted (edited)

Hello again everyone.

So, average mph says 64.4. Range left says 240 something. From full I have done 98.8 miles and guage hasnt moved from full. I know that the guard works as it was on a quarter when I filled up. 

Is this info supposed to be accurate? The range left was at idling. 

I worked out that each segment on the fuel guage is 1.28 gallons. 35 ltr - 7.7 gallons fank- 6 segments on guage so therefore 64.4mpg x 7.7 = 495 miles. If I have done 98 plus the 240 that I supposedly have left that would equal 338. 

Very puzzled 

Edited by Kevinuckfield

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The fuel gauge, in common with some other Toyota models, works in a non-linear way - so when the tank is full the initial gauge segments will be slow to extinguish and as the tank empties, the remaining gauge segments will extinguish more quickly. Something you will get used to.

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 Thanks Frosty. Had a car that did similar so will watch carefully. 

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My 1st segment lasts about 110 miles🤔

On my iQ🙃

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Dave, my first segment has lasted 118 miles and still not gone out! 

Not sure how the thing works but when i filled up i had done around 30 miles and average mpg was 66, each day it goes down. 3 days later it says 64. Cars drive me nuts lol

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I would not rely on bars on a fuel gauge as an accurate way of determining mpg.

Full tank to full tank is much more accurate I would think, but with that you need to be consistent on what is a full tank. I put the fuel nozzle in a far as it goes and maintaining pressure on the handle I wait until the pump clicks off, wait a few seconds, then press the handle once more until the pump clicks off. Then I note and record the mileage and the amount of fuel put in.. The more miles you do until fill up the more accurate it will be. When ready, fill the tank in exactly the same way as stated above, and record the mileage.  You know how much fuel you used for the miles travelled. Divide miles by how many gallons (you have to convert litres  of fuel used into gallons), and bobs your uncle, you have miles per gallon fairly accurately. As said more miles you do, the more accurate the reading becomes.

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I cannot for the life of me understand why people are obsessed with range/segments/miles per tank etc etc, drives me nuts!

Here is a tip for you all. Fill the tank, when it gets to a half or quarter tank, go to the fuel station and fill it up again, no stress, no strain, job done :thumbsup:

 

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Hi Kingo.

Totally 100% agree with you!

Mike.

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Presumably it is the same as other models, where if one puts less than 15 litres of fuel in, it may give false readings as regards range, etc.

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3 minutes ago, FROSTYBALLS said:

Presumably it is the same as other models, where if one puts less than 15 litres of fuel in, it may give false readings as regards range, etc.

Not sure to be honest Mike but would assume so, I fill up, usually £40 ish, lasts me about 7-10 days, currently doing 60.5 MPG in my Auris Hybrid 

 

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I'm with Kingo on this one, I've said quite a few times, when this question has been asked that what I do is to reset the trip meter when I fill up.  I run my Aygo on that and when it gets anywhere between 250-350 miles, I fill up again......I gave up trying to work out the fuel gauge about three weeks after I bought it.  😄

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Don't get me wrong, i like to know my MPG, I "sometimes" look at the range (which is about 520 miles on a full tank) but if it said 500, or 600, to be honest it would not bother me, I fill it up when around a quarter tank, to wonder why it takes 100 miles on the first segment or just 50 miles on the second segment just drives me insane, life is too short to be meithered about such things  :rolleyes:

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I have just bought a 2015 Aygo & have no faith in manufactures figures.I will work it out tank full to tank full my self hopefully it will be 60 + MPG.

 

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More like 50 MPG Ken..Let us know how you get on..

 

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6 hours ago, X5Ken said:

I have just bought a 2015 Aygo & have no faith in manufactures figures.I will work it out tank full to tank full my self hopefully it will be 60 + MPG.

The good news is that the standard test that all manufacturers have to put their cars through is changing such that more realistic mpg figures will be publicised. Of course, this will only apply to the future and not help current owners. And we will have to remember that how one person drives may well be vastly different to how another drives, so there will still be disgruntled drivers.

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