[Dean Aspects]

Just filled up yesterday and the price is down to 112p it might only be a few pence down per litre but at its worst level a couple of months back i was doing 150 miles for my £30 worth but now do 200 miles for the same money it does make a difference
How much is it where you are?

[LWC]

112 here to

petrol 99

going in the right direction

[seandyer2003]

110.9 this morning, and unleaded 99.9

[simon knight]

Still a pricey 119 here in SW London

[birdymiller]

I fill up every month and for the last few times the price has gone down straight after. I reckon im down £20 in 3 months, i might start putting £20 in every week.

[Dean Aspects]

I fill up every month and for the last few times the price has gone down straight after. I reckon im down £20 in 3 months, i might start putting £20 in every week.

I know what you mean i heard the price was going down again so i held off this week i was running on fresh air all week 

[wightsurf]

.70p,,,,I run on Biofuel 

[simon knight]

I fill up every month and for the last few times the price has gone down straight after. I reckon im down £20 in 3 months, i might start putting £20 in every week.

I know what you mean i heard the price was going down again so i held off this week i was running on fresh air all week 

No no no...do the maths:

Week 1: buy 15ltrs @ 120p = £18
Week 2: buy 15ltrs @ 117p = £17.55
Week 3: buy 15ltrs @ 114p = £17.10
Week 4: buy 15ltrs @ 111p = £16.65
                     
Equals 60ltrs costing £69.30

Whereas: Put in 60ltrs @ 120p on week 1 = £72
Then week 5 put in 60ltrs @ 111p = £66.60

Therefore average spent = £69.30

The same!

[[GQC] Tim]

I fill up every month and for the last few times the price has gone down straight after. I reckon im down £20 in 3 months, i might start putting £20 in every week.

I know what you mean i heard the price was going down again so i held off this week i was running on fresh air all week 

No no no...do the maths:

Week 1: buy 15ltrs @ 120p = £18
Week 2: buy 15ltrs @ 117p = £17.55
Week 3: buy 15ltrs @ 114p = £17.10
Week 4: buy 15ltrs @ 111p = £16.65
                     
Equals 60ltrs costing £69.30

Whereas: Put in 60ltrs @ 120p on week 1 = £72
Then week 5 put in 60ltrs @ 111p = £66.60

Therefore average spent = £69.30

The same!

Excellent.

[AuRavelling79]

NOT EXCELLENT! WRONG! Dean Thorlby is quite right.

In Simon's example he spends £72 in week one for 60 litres

By the time he has used it up it has cost (obviously) £72

The 15 litres every week x 4 example adds up to £69.30 = saving of £2.70

Now they both have empty tanks.

Week 5 they put fuel in at a lower price and if the price drops then the guy putting in a smaller weekly amount will save money. If the price goes up then the guy putting in the whole 60 litres saves money.

(In the second example you are averaging the use of 120 litres not 60)

Also the psychological benefit of having little fuel in your tank means that you might drive more economically and take less unnecessary trips...

[Moderator David@stives]

www.petrolprices.com

[dmlservices]

what i would like to know is , why the hell is diesel still dearer than petrol, a few years ago it was actually cheaper than petrol, and was one of the reasons i changed from petol to diesel, was using estate cars at the time.

daz

[AuRavelling79]

what i would like to know is , why the hell is diesel still dearer than petrol, a few years ago it was actually cheaper than petrol, and was one of the reasons i changed from petol to diesel, was using estate cars at the time.

daz

Because demand for diesel (although cheaper to produce) has risen with all the new cars being diesel and what-knot.

I remember going to Tenerife about 10 years ago and hiring a diesel astra/opel kadet and diesel was two thirds the price of petrol at the time.

I wonder if the gap (which has been about 10% in the last year) will narrow fractionally as demand drops - but prolly not.

I reckon I save 25/30% on mpg with diesel over petrol for a similar sized car and so the differential deffo works in my favour.

[simon knight]

NOT EXCELLENT! WRONG! Dean Thorlby is quite right.

In Simon's example he spends £72 in week one for 60 litres

By the time he has used it up it has cost (obviously) £72

The 15 litres every week x 4 example adds up to £69.30 = saving of £2.70

Now they both have empty tanks.

Week 5 they put fuel in at a lower price and if the price drops then the guy putting in a smaller weekly amount will save money. If the price goes up then the guy putting in the whole 60 litres saves money.

(In the second example you are averaging the use of 120 litres not 60)

Also the psychological benefit of having little fuel in your tank means that you might drive more economically and take less unnecessary trips...

Honestly Malc, I've just shown mathmatically that the price will be the same. In week 5 if the fuel price then falls again the same formula applies.

Also, yes in the 2nd example I'm averaging 120 ltrs not 60....so what? it works out at £69.30.

[simon knight]

114p in rossendale

Yeah well in Rossendale they still point at aeroplanes...

[Dean Aspects]

NOT EXCELLENT! WRONG! Dean Thorlby is quite right.

ooh ooh i was right  now i have that in writing  i feel so superior
Suppose someone will come along and knock me down a peg or two the wife probably

And just went past the petrol station and petrol has dropped another penny now at 100p

[simon knight]

NOT EXCELLENT! WRONG! Dean Thorlby is quite right.

ooh ooh i was right  now i have that in writing  i feel so superior
Suppose someone will come along and knock me down a peg or two the wife probably

And just went past the petrol station and petrol has dropped another penny now at 100p

Don't get excited. Malc may well be a great window cleaner but mathmatician he ain't.

[AuRavelling79]

Wrong Simon, because the first average you give is only over 60 litres for guy one but 120 litres for guy two...

When guy one fills up another 4 times 15L making 120 litres his second lot of fill ups will attract the lower price and his 120 litres will be commensurately cheaper.

If the price goes up it's the other way round.

Sorry but my "A" level Maths is accurate this time.

[simon knight]

Wrong Simon, because the first average you give is only over 60 litres for guy one but 120 litres for guy two...

When guy one fills up another 4 times 15L making 120 litres his second lot of fill ups will attract the lower price and his 120 litres will be commensurately cheaper.

If the price goes up it's the other way round.

Sorry but my "A" level Maths is accurate this time.

Right Mr Malc, firstly there are no 2 guys in my example...read it carefully please! There is only one guy who goes to a petrol station on a Monday morning and puts in 15ltrs @ 120 = £18,  the next Monday he puts in 15ltrs @ 117 = £17.55, Monday 3 he puts in 15ltrs @ 114 = £17.10, and Monday 4 he again puts in 15ltrs @ 111 = £16.65

Making a grand total of 60ltrs costing £69.30...yes?

Now just suppose on Monday One he puts in 60ltrs @ the then price of 120...he will pay £72...yes?

This fuel last until Monday 5

And then on the 5th Monday (bearing in mind he's bought the 1st 4 weeks of fuel) he buys another 60ltrs @ 111 it costs him £66.60...yes?

Now assuming you don't dispute the maths so far this means that on the 5th Monday he has bought in total 120ltrs of fuel at a cost of £72 (Monday one) and a further £66.60 (Monday two) making a total outlay of £138.60 divide this by 120 and you get 115.5 pence per ltr...yes?

Now if he'd bought it the 15ltr a week way..15ltrs @120
                                                                      15ltrs @117
                                                                      15ltrs@114
                                                                       15ltrs@111

Equals (funnily enough) £115.5 per ltr...yes?

Now this only works if the price is falling (doesn't matter by how much or how fast) and the guy buys the same amount every time.

Malc it's standard maths....I think in your case the "A" meant Absent!

[AuRavelling79]

No Simon! because at the fifth Monday the guy buying 15 litres at a time is already £2.70 up on the guy who bought 60 litres at the higher price.

If the guy buying 15 litres at a time continues to do so for the next 4/5 weeks in a falling price market he will do the same again over the guy who buys 60 litres at once. He will save another £2.70.

You are making the fundamental mistake of averaging the whole 120 litres instead of the 60 and then the 15 litre increments.

The first 60 litres stand alone; don't bring a second 60 litres into it.

Think it through. It reverses if the price goes up.