teejay Posted January 16, 2011 Posted January 16, 2011 Don't know if anyone else has seen this, only really noticed a week or so ago. I drive past two petrol stations on my way to work and in the morning the petrol is alway 1p cheaper than the afternoon. Price has always gone back down by the 1p by the next morning, unless of course there has been a price rise (if that makes sense!)
plexer Posted January 16, 2011 Posted January 16, 2011 They have to set their price for the fuel when it's delivered. Guess they must get their delivery after you drive past. Ben
teejay Posted January 16, 2011 Author Posted January 16, 2011 But it goes back down the for the next morning, all last week it was 125.99 in the morning and 126.99 in the afternoon:confused:
m25man Posted January 16, 2011 Posted January 16, 2011 You are stuck in a Groundhog day... snap out of it! 1
limbo Posted January 17, 2011 Posted January 17, 2011 Is it a 2 sided sign that is different on both sides, so it is different depending on which way you drive past? 2
teejay Posted January 17, 2011 Author Posted January 17, 2011 This is really beginning to bug me now, again this morning 1p cheaper than Friday evening. Will have to pop into one of them to find out why....
victory2009 Posted January 17, 2011 Posted January 17, 2011 This is really beginning to bug me now, again this morning 1p cheaper than Friday evening. Will have to pop into one of them to find out why.... same here every morning shell garage 1p cheaper in morning than afternoon
sonofsanta Posted January 17, 2011 Posted January 17, 2011 Top Gear reckoned (not that that's scientific, but.../I]) that it was worth getting your petrol first thing in the morning anyway, when it's colder. therefore liquid is denser, therefore my fuel for your pennies. I reckon it's worth getting my petrol in the morning because that way I can pick up a little milk for my teas through the week.
creese Posted January 17, 2011 Posted January 17, 2011 Top Gear reckoned (not that that's scientific, but.../I]) that it was worth getting your petrol first thing in the morning anyway, when it's colder. therefore liquid is denser, therefore my fuel for your pennies. Surely the depth of the tank means that the liquid temperature is fairly constant? or not?
Gatt Posted January 17, 2011 Posted January 17, 2011 therefore my fuel for your pennies how many of my pennies do I need to part with for your fuel
limbo Posted January 17, 2011 Posted January 17, 2011 Surely the depth of the tank means that the liquid temperature is fairly constant? or not? The warmer it is the more of the fuel turns to vapour and is lost into the air while being put into the tank, or something like that.
soveryapt Posted January 17, 2011 Posted January 17, 2011 Surely the depth of the tank means that the liquid temperature is fairly constant? or not? I have a borehole for water, and the top of the borehold is literally the depth of a small manhole cover and whilst I had a frozen pipe just about the surface, in this manhole cover, the water wasn't frozen (despite the fact I used up a gas cannister on a large patio heater to unfreeze the manhole cover when we had some issues). So, although it's not petrol in my borehole (or I really hope it isn't! lol) that I'm guessing a similar principle applies and that the tanks are probably not hugely effected by above ground temperature changes ..
L_Smith Posted January 17, 2011 Posted January 17, 2011 The warmer it is the more of the fuel turns to vapour and is lost into the air while being put into the tank, or something like that. And that is my useful fact for the day.
creese Posted January 17, 2011 Posted January 17, 2011 The warmer it is the more of the fuel turns to vapour and is lost into the air while being put into the tank, or something like that. I think people are saying that the liquid in the tank is more dense. Fuel density travelling through the pipe into the car would be negligible.
soveryapt Posted January 17, 2011 Posted January 17, 2011 The warmer it is the more of the fuel turns to vapour and is lost into the air while being put into the tank, or something like that. But see, that would probably make sense too .. so the liquid would be constant temp, but you would probably lose more in the filling, but that has to be an amount that probably isn't worth counting in the first place?
limbo Posted January 17, 2011 Posted January 17, 2011 But see, that would probably make sense too .. so the liquid would be constant temp, but you would probably lose more in the filling, but that has to be an amount that probably isn't worth counting in the first place? I think it the margin between early morning and midday temperatures is probably greater in the summer, you can quite often see the vapour escaping in the air on a really hot day (looks a bit like heat haze). This, I guess, is when filling up early in the morning makes the biggest difference because you still have to pay for the vapour.
RabbieBurns Posted January 17, 2011 Posted January 17, 2011 petrol here various by as much as 15c depending on the day of the week it is, Ive not quite figured that one out yet, or remembererd which is the cheapest day..
K.C.Leblanc Posted January 17, 2011 Posted January 17, 2011 petrol here various by as much as 15c depending on the day of the week it is, Ive not quite figured that one out yet, or remembererd which is the cheapest day.. This often happens with smaller petrol stations in the UK. It's generally because the station's tanks don't hold much more fuel then the tankers that deliver to them. They use to price to regulate how much fuel they sell, making sure they don't run out, but have enough room to take their next delivery. 1
Andrew_C Posted January 17, 2011 Posted January 17, 2011 As I'm paying £1.31+ (Diesel) it might be worth me driving up to you one morning!
teejay Posted January 17, 2011 Author Posted January 17, 2011 wow I wish ours was 126.99p !!! Sainsburys is the cheapest near me, 123.99. @Andrew_C - you're being robbed mate Get some farmers diesel, much cheaper, just don't get caught though
sonofsanta Posted January 17, 2011 Posted January 17, 2011 I never said the top-up-in-the-morning-thing was true, just that I heard it on Top Gear... Cheapest diesel for me is 128.9 in my work town, although the station I use is 129.9 because I'd spend more in diesel getting through town to get the penny off than I'd save by filling up there. My home town is somewhere around 135.9. Rural life sucks sometimes. And I just know that for all this talk of the rural fuel subsidy or whatever, it will only be a few villages in the Scottish highlands that qualify, and Lincolnshire will somehow be portrayed as this vibrant centre of industry where we're absolutely not just fields of cabbages.
Andrew_C Posted January 17, 2011 Posted January 17, 2011 Diesel 130-136 Petrol 126-132 within 10 miles of Winchester.
Rydra Posted January 17, 2011 Posted January 17, 2011 I worked in a supermarket petrol station for a year when i was 18, and i can promise you at least from my experience, the prices changed very rarely, and only at the end of the day. Smaller stations may be able to do this, as they probably set their own prices etc. But the big ones, trust me when i say the people in the little shop have ABSOLUTELY no control over the prices... Could you imagine if the till operator had the ability to change the prices up or down dynamically all day? As soon as their mates comes in, drop price to 10p per litre and off you go... A pricechange will only occur during the day as an emergency, as all the pump's computers have to be updated (this i believe requires a minor reboot of the computer held in the back room), as well as the till computers. In the year i was there, this only happened once, and was actually because the petrol company had issued a price change notice after closing the previous night, and our manager hadn't got in till the 2nd shift; our prices weren't matching...
Jon Posted January 17, 2011 Posted January 17, 2011 How accurately are petrol pumps calibrated, and how often do they nedd to be checked? I ask this because one station near me seems to give me less fuel than the other for the same amount spent, although they both have their fuel at the same price.
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