FUEL PUMP ADDING THE 0.01pence !!! ???

[McSam]

shakotan said:

KTF said:

Monetary unit only shows 2 decimal places.

Fuel delivered is 1.009 litres, display only shows 2 decimal places.

£1.259 * 1.009 is £1.270331, shows as 2 decimal places.

Its not exactly fking rocket science, is it.

You're right in principle, but the fuel quantity display should round properly, not truncate. So it would need to be 1.0049 litres * £1.259 = £1.2651 ~ £1.27.

I'm fairly sure they round up to the nearest penny too, in which case anything over 1.0008 litres would be enough to get it to read £1.27, and the readout in this situation would obviously still show 1.00 litres.

This cropped up on Twitter recently as if it was conclusive proof that filling stations are scamming bds. No, it's just maths... Makes me worry sometimes. This sort of false discrepancy will appear in loads of different displayed fuel quantities, but it only gets noticed on 1.00 litres because then it's "obvious".

[Vaud]

McSam said:

You're right in principle, but the fuel quantity display should round properly, not truncate. So it would need to be 1.0049 litres * £1.259 = £1.2651 ~ £1.27.

I'm fairly sure they round up to the nearest penny too, in which case anything over 1.0008 litres would be enough to get it to read £1.27, and the readout in this situation would obviously still show 1.00 litres.

This cropped up on Twitter recently as if it was conclusive proof that filling stations are scamming bds. No, it's just maths... Makes me worry sometimes. This sort of false discrepancy will appear in loads of different displayed fuel quantities, but it only gets noticed on 1.00 litres because then it's "obvious".

That, and the unit clearly states 2litres min delivery. Which is linked to the accuracy of the delivery?

[shakotan]

McSam said:

shakotan said:

KTF said:

Monetary unit only shows 2 decimal places.

Fuel delivered is 1.009 litres, display only shows 2 decimal places.

£1.259 * 1.009 is £1.270331, shows as 2 decimal places.

Its not exactly fking rocket science, is it.

You're right in principle, but the fuel quantity display should round properly, not truncate. So it would need to be 1.0049 litres * £1.259 = £1.2651 ~ £1.27.

I'm fairly sure they round up to the nearest penny too, in which case anything over 1.0008 litres would be enough to get it to read £1.27, and the readout in this situation would obviously still show 1.00 litres.

This cropped up on Twitter recently as if it was conclusive proof that filling stations are scamming bds. No, it's just maths... Makes me worry sometimes. This sort of false discrepancy will appear in loads of different displayed fuel quantities, but it only gets noticed on 1.00 litres because then it's "obvious".

Fuel pumps are not allowed to round up, they will display 1.00litre from 1.0000 litre to 1.0099 litres, same with the monetary value. So effectively you are gaining free fuel if you are stopping just under the point that £20.00 becomes £20.01.

So now think about that, all those fuel ups where people are getting £20.009 worth of fuel for £20.00. The poor retailer/Government is getting ripped off, people should be up in arms about that. Maybe start an e-Petition or something equally as helpful. But wait, we're not interested in the balance that goes the other way.

[Bill]

PARTYANNA said:

I thought the days of the fuel pumps adding that extra penny after self serving fuel had long gone.
My last two fuel ups were to an exact amount of £20, I ensured to take my finger off the nozzle trigger, as soon as I get to the cashier...... the mysterous 1p is charged. Is this down to faulty (or too accurate a) fuel measuring or what? The Fuel Station was not interested in my comment about it.

Its not the penny but the principle - Can I complain and who to?

Wow, your party sounds fun

[McSam]

Vaud said:

That, and the unit clearly states 2litres min delivery. Which is linked to the accuracy of the delivery?

I'm not sure whether it's accuracy or avoiding arse-ache with people constantly putting 50p in mopeds and the like. It's not difficult to measure the delivery plenty accurately enough for two litres, and if you remember it used to be five but seemed to change as prices rose.

shakotan said:

Fuel pumps are not allowed to round up, they will display 1.00litre from 1.0000 litre to 1.0099 litres, same with the monetary value. So effectively you are gaining free fuel if you are stopping just under the point that £20.00 becomes £20.01.

So now think about that, all those fuel ups where people are getting £20.009 worth of fuel for £20.00. The poor retailer/Government is getting ripped off, people should be up in arms about that. Maybe start an e-Petition or something equally as helpful. But wait, we're not interested in the balance that goes the other way.

Interesting, I didn't know that the pump readouts are required to truncate in every case. I was under the impression that the fuel figure would round correctly, but the price would either truncate or, more likely, round up. If what you say is the case, we're most certainly getting away with more fuel than we're paying for, though it's only maybe 0.02% on average (half of a penny over 125p/litre average prices, once per 20 litre fill).

Have you got a source for relevant legislation?

[sparks_E39]

It's one penny. Who cares?

[TheAngryDog]

Bluehawk said:

£137.80 Maximum cost in a lifetime.

That would buy me a lot of one penny sweets!

I'm now depresed, thanks

[soad]

KTF said:

windydog said:

Standby for the next big fraud issue. Under the EU regs, fuel stations issueing Petrol will have even newer vapor recovery systems in place (a little tube running alongside the nozzle) to stop vapours venting to atmosphere and suck the vapours back into the storage tank. The fuel station will reclaim this vapour, however you have already been charged for it. Could be interesting.

Best burn it off with a lighter whilst you are filling up to avoid them 'stealing' the vapour that you are paying for

sparks_E39 said:

It's one penny. Who cares?

The OP does.

[shakotan]

sparks_E39 said:

It's one penny. Who cares?

It ISN'T one penny, no-one should care.

[Megaflow]

KTF said:

Again?

People's failure to grasp basic maths is very scary...

Try putting ten litres in to reduce the significance of the rounding error and come back with your findings.