Have I got this right? Fuel related...

[Cavcraft]

...right, absolutely hopeless with maths and all that but it's been bugging me for a while now as to what £10.00 in fuel equals in MPG.

 

So, if petrol costs £1.38 per litre and there's 4.456 litres per gallon, then ten quid would equal 7.246 litres based on 10 (quid) divided by (£)1.38 (cost of a litre).

 

This would lead me to deduce that if you got 60 miles out of your ten spot you have achieved 8.280 miles per litre and thus 36.89mpg. Does that make sense to anyone still left awake after reading all that?

 

Hoping that it does, here's my 'ready reckoner' based on £1.38 per litre and a tenner's worth of fuel:

 

Miles achieved MPG

30 = 18.44.

 

35= 21.52.

 

40= 24.59.

 

50= 30.74.

 

60= 36.89.

 

 

If that seems right and anyone is even remotely interested I'll work out some other figures based on diesel and more expensive petrol.

[dollywobbler]

I thought the mpg to litres calc was 4.54 rather than 4.45? Otherwise, I think you're on the money. I start my taking the litres and dividing by 4.54 to get gallons. Then I take my miles and divide by gallons.

[Guest Leonard Hatred]

MPG is the only fuel consumption measurement I understand, but I don't know why something more sensible hasn't been introduced involving the actual units of measurement we buy fuel in.

British stubbornness I suppose.

[revolting peasant]

[HillmanImp]

MPG is the only fuel consumption measurement I understand, but I don't know why something more sensible hasn't been introduced involving the actual units of measurement we buy fuel in.

British stubbornness I suppose.

 

And its also a ploy to make sure nobody has a fuggin clue how much fuel they are using. Bit conspiracy theory but the truth is out there.

 

And you have transposed the 4 and the 5. I just checked on google although it might be giving me stupid american litres or summink.

[Craig the Princess]

Pretty much spot on

 

1 gallon = 4.5454 litres (near enough)

 

So at my local's very reasonable £1.349 per litre £10 buys you 7.41 litres or 1.63 gallons.

 

So if your £10.00 gets you 67 miles that is 41.1 mpg, which is also 14.92 pence per mile.

[Andrew353w]

When I worked on a "Jet" forecourt in Bideford, North Devon, petrol (2,3 & 4 star) was sold in gallons (£1.18 per gallon, NOT per litre!) and we had to use the 1 gallon as 4.54609 litres, as we bought it from the refinery in litres.

 

Incidentally, I've recently done the following calculation regarding the costs of fuel used by my Citroen; it does about 500 miles on a tankful and the tank costs about £100 to fill. Therefore every mile I drive costs me 20 pence in fuel, aside from other costs, such as MOTs, servicing, repairs, tyres etc. Scary, eh? My journey to work is 35 miles each way, so that's 70 miles round trip, costing £14 in fuel alone; travel by London Underground's infamous Northern Line costs £2.70 each way (£5.40 return) if I travel off peak (I usually do) or £4.50 each way if I travel in the peak times (a round trip cost of £9.00) All the above fares apply if I use an Oyster (although why anyone would want to take a small marine-based life form on a tube defeats me....) and although I love driving, the economics speak for themselves and I'm using the tube more and more (Bob Crow permitting!)

[Andrew353w]

When I worked on a "Jet" forecourt in Bideford, North Devon, petrol (2,3 & 4 star) was sold in gallons (£1.18 per gallon, NOT per litre!) and we had to use the 1 gallon as 4.54609 litres, as we bought it from the refinery in litres.

 

Incidentally, I've recently done the following calculation regarding the costs of fuel used by my Citroen; it does about 500 miles on a tankful and the tank costs about £100 to fill. Therefore every mile I drive costs me 20 pence in fuel, aside from other costs, such as MOTs, servicing, repairs, tyres etc. Scary, eh? My journey to work is 35 miles each way, so that's 70 miles round trip, costing £14 in fuel alone; travel by London Underground's infamous Northern Line costs £2.70 each way (£5.40 return) if I travel off peak (I usually do) or £4.50 each way if I travel in the peak times (a round trip cost of £9.00) All the above fares apply if I use an Oyster (although why anyone would want to take a small marine-based life form on a tube defeats me....) and although I love driving, the economics speak for themselves and I'm using the tube more and more (Bob Crow permitting!)

[myglaren]

Does anyone know how you web-host an excel thing?

 

I made a rather whizzo mpg-o-meter the other week in a dull moment, no idea how to share it though.

 

If you do it in Google Documents you can share it with named contacts, anyone with a link or publish it so any T,D or H can view it.

 

Edit: stoopid typo.

[Pete-M]

I use this

[Tayne]

.

[Luxobarges_Are_Us]

My penny pinching Scottish ways mean that I do this for almost every tank.

I feel genuine anguish when I cock up my purchasing and am faced with the choice of an expensive tank or the £5 top up to get me to a cheaper filling station and ruining my calculations.

 

Why would you ruin your calcs? You put a fiver in and just add it (taking into account the litre price, of course) to whatever you put in when filling up. You don't touch the trip meter, and that's all you need: you know both the amount of miles you did and the amount of litres it required.

 

I do it all the time, the extra calculations only take about 15 seconds.

[tonedepear]

http://www.fuelly.com/

[Rod/b]

My car's fuel computer displays in L/100km, which confused the shite out of me when i first got it. Still it seems that it averages 17 of those, which is about 16MPG if i'm working it out right. Wish i hadn't bothered. Still, super unleaded is 17p/litre so not the end of the world.

[wuvvum]

Still, super unleaded is 17p/litre so not the end of the world.

F**K. RIGHT. OFF.

 

[Guest Leonard Hatred]

My fuel's free.

 

Yes, I'm a 'bilker'.

[tonedepear]

I'm a 'bilker'.

 

You play the clarinet?

[Cavcraft]

It was the flute actually, couldn't raise the Ackers for a clarinet.

[Guest Leonard Hatred]

[gtd2000]

All the above fares apply if I use an Oyster (although why anyone would want to take a small marine-based life form on a tube defeats me...

 

Probably chose something sounding similar but not identical to the tried and tested "Octopus" cardsystem that was originally used in Hong Kong for transportation purposes.

 

http://en.wikipedia.org/wiki/Octopus_card

 

I thought it was a great idea at the time - now where are those rose tinted glasses of mine....