last fuelup not showing
 

Hi Guys

I cannot get my last fuel up to show in the badge.

Have removed and re entered the fuel up and refreshed the badge

but still says 9 fuelups :(

Are you marking each fuel up as partial? That could be the problem.

Hi Matt

Why would you make a program with such an obvious stumbling block.

I never fill whole tank as it costs fuel to carry the weight.
If its true i will be finding another proggy to use as thats a glaring fault.

I would only ever fill the tank fully if i was using it in one single trip.
Just a waste otherwise.

Cobra88-

I don't work for fuelly, I'm just a member. FWIW, you can't reliably compute your fuel mileage if you don't fill your tank twice. You need to start with a full tank, drive x number of miles, and then refill it. Then, take your total number of miles driven and divide it by the gallons or liters of fuel used. If you don't like doing that, your better off tracking your fuel mileage with your car's information center, a device like a Scangauge or Ultra-gauge, or Torque on an Android device.

I mentioned this flaw before, 90% of people I know only put 2 or 3 gallons in ata time due to high cost in the UK (my 11 gallon tank costs the equivelent of about $120)

I prefer a full tank so it can last over a month rather than topping it up and making multiple trips, but most people just put a bit in here and a bit in there.

How Full is Full, with Petroleum Products.
 

Hi Cobra88:

Welcome to the feully website, I also am a member only.

While the Idea of fuelly is great, it does have some limits, and you have stumbled against, not a limit of the program (proggy) itself, just a matter of logic.

Suppose I drove a modern vehicel and the fuel gauge had 5 marks on it; Empty, 1/4 full, 1/2 Full, 3/4 amd Full.

Now Imagine that I started from the dealer with a full tank (I know they no longer give you a full tank to start), but just suppose.

IF the fuel performance was 20 Miles per gallon, and the tank held 5 Gallons, I would have to fill it up every 100 Miles of travel.

But it holds more, so the tank many hold 20 Gallons, with room for expansion of 20% (4 Gallons of Volume), the actual tank size is 24 Gallons to the Brim (But Don't Fill it that full).

Now you drive it a bit and you keep on driving until it shows 1/4 Full. The problem is, according to the Fuel Gauge the tank has 5 gallons left to go, yet when you fill it up, you can push 15 gallons in and the automatic stop engages. But you add More, Then It Clicks again and another 1/2 Gallon was added.

Now the question is How Much fuel is in the tank? Is it
A)20, B)20.5, C)21,

There is no way to be sure, the only way is to be consistant with how you fill it up.

Some Owners Manuals indicate to just fill it till the auto-shutoff trips the nozzle.

This is to prevent the Emissions Charcoal Canister from filling up with fuel, it is supposed to exhaust the vapours to the open air, but if you consistantly over fill the tank, It (the canister) will get the overflow from expansion.

So, the only way is to be in bright sunlight, and filling up the tank yourself , see if you can see into the tank funnel, if not, just use the 1st click of the auto-shutoff as a marker when is full.

Now, IF you only put in $5.00 or L5.00 (or L10.00 or $10) because it is so expensive, there is no way to know whether you have filled it up again, for an accurate measurement.

In this Case, Just Add your Partial Fills together, and once and a while then Fill it FULL. After the FULL fillup, enter the data in Fuelly , and you will see, it comes out close to the more granular every fill-up others are experiencing.

ie: Instead of every week, just do the fuelly thing once every 6 weeks. I know it does not sound right, but in the end it works out fine.

IF you need more granular than once every 6 weeks calculations, then you need a ScanGauge attached to the OBD, and an imaginary egg between the shoe and the pedal.

The Program does work, its just the granularity , of the gauge on the dashboard is so terrible.

If you have a car that gives the Number Of Litres(Miles) till empty, use that , and consistently mark down in comments when you fill up, the Number of Litres(Miles) till empty, that also is a guess, but it is a good reference to use.

~Cobourg

Thank you to all that posted helpful advice!

Cobra88,

I double checked your Fuel Log and indeed all fill-ups are marked as Partial. Fuelly won't be able to calculate your fuel economy based on partials alone.
Cobourg above did a pretty good job as to explaining why.
To reinforce it, here's our FAQ on Why do I have to fill the tank all the way up every time I buy fuel?

if that is how you use fuelly then unless you also drain your fuel tank and push your car to the filling station too you are also not going to get a 100% accurate reading.

Pointless.

Shame as it worked great till the last fillup.

I'm out of here to look for one that works properly (one that doesn't stop working after a good start)

Thanks for the replies

Account closed

Unfotunatley some people just dont get it...

Larry, Larry. Larry,

Why don't you fill up each time. You're going to use the fuel anyways. And it gives you a much more accurate reading. Man, I got to look out for you even when I'm not around the FF. :):hide: