Tony Posted November 18, 2014 Report Share Posted November 18, 2014 Problem is, even if the pump numbers did all match up, you still don't know for sure that you really got 1 litre.There's definitely cases of garages being fined for not having correctly calibrated measuring equipment. A Tesco Garage was fined a few Years ago and iirc it was calculated they'd ripped customers off to the tune of £150,000 over the period the measuring equipment was faulty. I also remember the volumes of many liquids change dependent on temperature fluctuations.Petrol is one of those - A litre from the pump in hot weather will be less volume than a litre delivered in cold weather.Thus, (in my uneducated opinion), petrol should never be charged in litres anyway, it should be sold by weight. Quote Link to comment Share on other sites More sharing options...
liner33 Posted November 18, 2014 Report Share Posted November 18, 2014 I'd speak to trading standards they will measure Quote Link to comment Share on other sites More sharing options...
parthiban Posted November 18, 2014 Report Share Posted November 18, 2014 I'm going to test that out the next time I fill up! Quote Link to comment Share on other sites More sharing options...
Tony Posted November 18, 2014 Author Report Share Posted November 18, 2014 Let us know what you find? Quote Link to comment Share on other sites More sharing options...
SMARTLY Posted November 18, 2014 Report Share Posted November 18, 2014 There's a minimum delivery amount in litres to even out the way the pump calculates price against measured volume. In the picture above the pump may have dispensed 1.009 litres and that would calculate at £1.25 but show as 1.00 litres Quote Link to comment Share on other sites More sharing options...
Rich Posted November 18, 2014 Report Share Posted November 18, 2014 Isn't the minimum delivery something like 2 or 3 litres? If you did that it would probably be the correct price? Quote Link to comment Share on other sites More sharing options...
Sagitar Posted November 18, 2014 Report Share Posted November 18, 2014 temporary_zps6a1d5719.jpg Problem is, even if the pump numbers did all match up, you still don't know for sure that you really got 1 litre. There's definitely cases of garages being fined for not having correctly calibrated measuring equipment. A Tesco Garage was fined a few Years ago and iirc it was calculated they'd ripped customers off to the tune of £150,000 over the period the measuring equipment was faulty. I also remember the volumes of many liquids change dependent on temperature fluctuations.Petrol is one of those - A litre from the pump in hot weather will be less volume than a litre delivered in cold weather. Thus, (in my uneducated opinion), petrol should never be charged in litres anyway, it should be sold by weight. I know what you mean, but it's the mass that changes, not the volume. Think of a 1 litre container filled to the brim with petrol. It will have a specific mass and the energy available is directly proportional to that mass. If the temperature rises, the volume of the petrol will increase and it will overflow. The volume in the container is still one litre, but the mass of the petrol in the container has decreased and so has the available energy. If you are buying by volume, it makes sense to buy when the petrol is cold. One of the reasons why storage tanks are buried in the ground is to limit temperature variation, but it would certainly make sense to buy by weight. It's a bit more difficult to measure liquid mass continuously than it is to measure volume continuously, but there are ways of doing it. Quote Link to comment Share on other sites More sharing options...
Tony Posted November 19, 2014 Author Report Share Posted November 19, 2014 I actually understood that, thanks for the reply. Quote Link to comment Share on other sites More sharing options...
liner33 Posted November 19, 2014 Report Share Posted November 19, 2014 I am stunned this made the Daily Mail today ! Quote Link to comment Share on other sites More sharing options...
Tony Posted November 19, 2014 Author Report Share Posted November 19, 2014 Did it.... They been reading wim Quote Link to comment Share on other sites More sharing options...
liner33 Posted November 19, 2014 Report Share Posted November 19, 2014 Twas all over facebook yesterday Quote Link to comment Share on other sites More sharing options...
Tony Posted November 19, 2014 Author Report Share Posted November 19, 2014 Bloody FB it's worse than BBC news...... Quote Link to comment Share on other sites More sharing options...
P4UL T Posted November 20, 2014 Report Share Posted November 20, 2014 I did this with 10l this week to see. The 10l at 122.9 cost £12.29. So all seems well. This was at a Shell garage Quote Link to comment Share on other sites More sharing options...
Tony Posted November 21, 2014 Author Report Share Posted November 21, 2014 Thanks for testing....... Slightly off topic does anyone know how electric charge stations "charge", is it by the minute and how do you actually know how much charge level ( power ) your getting? Quote Link to comment Share on other sites More sharing options...
liner33 Posted November 21, 2014 Report Share Posted November 21, 2014 they dont charge , well they "charge" but dont levy a fee for it Quote Link to comment Share on other sites More sharing options...
Tony Posted November 21, 2014 Author Report Share Posted November 21, 2014 I don't understand. Quote Link to comment Share on other sites More sharing options...
parthiban Posted November 21, 2014 Report Share Posted November 21, 2014 I don't understand. He meant they "charge" as in charge the batteries - there is no charge (cost) to use any electric charging point at the moment. Quote Link to comment Share on other sites More sharing options...
Tony Posted November 21, 2014 Author Report Share Posted November 21, 2014 What free electric from a petrol station Quote Link to comment Share on other sites More sharing options...
Rich Posted November 21, 2014 Report Share Posted November 21, 2014 Charging points aren't in petrol stations are they, more like car parks? Quote Link to comment Share on other sites More sharing options...
Tony Posted November 21, 2014 Author Report Share Posted November 21, 2014 But still for free.... I didn't think anything was free nowadays other than death. Quote Link to comment Share on other sites More sharing options...
parthiban Posted November 21, 2014 Report Share Posted November 21, 2014 Yep not in petrol stations, but you find them in car parks and in central london you see them dotted around on the streets. And it is completely free! Quote Link to comment Share on other sites More sharing options...
Tony Posted November 21, 2014 Author Report Share Posted November 21, 2014 Who's paying for it then Quote Link to comment Share on other sites More sharing options...
liner33 Posted November 21, 2014 Report Share Posted November 21, 2014 When in car parks the fee is offset by the parking charge , when in services, little chefs etc it's offset but the stuff you buy in the store It's a good business model for those companies because they get a customer spending 30+ mins Quote Link to comment Share on other sites More sharing options...
parthiban Posted November 21, 2014 Report Share Posted November 21, 2014 All the places you can charge up will have some other form of payment as liner says. Plus I'm sure those companies will get some kind of govt subsidy for providing charging facilities. Quote Link to comment Share on other sites More sharing options...
Tony Posted November 21, 2014 Author Report Share Posted November 21, 2014 Well ok i see your point providing it's not reflected in the price of goods in store. Quote Link to comment Share on other sites More sharing options...
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