Which MPG website?

[DaveH23]

Somebody started a thread on here about a month ago asking if anybody uses a certain website where people submit there actual real world MPG figures and i would like to look at it again.

Does anybody know the site or can post a link to the original thread?

Thanks.

Edited by DaveH23 on Sunday 9th October 22:16

[DaveH23]

Somebody started a thread on here about a month ago asking if anybody uses a certain website where people submit there actual real world MPG figures and i would like to look at it again.

Does anybody know the site or can post a link to the original thread?

Thanks.

Edited by DaveH23 on Sunday 9th October 22:16

[diddles]

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[DaveH23]

Bloody hell that was quick. The site was actually a different site not PH!

Posted from iphone and accidentaly put angry face and posted same content about 3/4 times! Woops.

[Fish981]

http://www.fuelly.com ?

[DaveH23]

Fish981 said:

http://www.fuelly.com ?

Bingo!

Thanks.

[twazzock]

Fuelly is good pretty good. I think there's a German one too which looked pretty detailed but I couldn't get past the l/km thing and just gave up.

[Efbe]

DaveH23 said:

Fish981 said:

http://www.fuelly.com ?

Bingo!

Thanks.

this is where I go too.

[DavidHM]

twazzock said:

Fuelly is good pretty good. I think there's a German one too which looked pretty detailed but I couldn't get past the l/km thing and just gave up.

Litres per 100 km to mpg is easy.

Just take 282.12 and divide by the l/100 km to get the mpg,

e.g., 7l/100km
282.12/7
40.30 mpg

[Pints]

Have registered. Thanks for this.

[pilchardthecat]

twazzock said:

Fuelly is good pretty good. I think there's a German one too which looked pretty detailed but I couldn't get past the l/km thing and just gave up.

It's gash. For example it describes all the BMW Z4s as "Gas V6 Convertible" ergo i would hesitate to rely on any of the information on the site

[twazzock]

DavidHM said:

Litres per 100 km to mpg is easy.

Just take 282.12 and divide by the l/100 km to get the mpg,

e.g., 7l/100km
282.12/7
40.30 mpg

Yeah, easy I'd rather just look at it and know what it means without having to do any calcs - that's why I was looking for a site like that in the first place, to display my MPG easily

Fuelly is a bit poo on the details but ultimately it allows you to see how much fuel others are using to run their cars. If there's any errors it's because of the end user.

[balders118]

DaveH23 said:

Fish981 said:

http://www.fuelly.com ?

Bingo!

Thanks.

Hmm they have the puma with an avg mpg of 31mpg! I average 39 mpg, and that's a classic combined cycle - not long runs all the time. Although it does include some long motorway miles it also includes several hoons, and I'm generally not light footed! A massive difference, could it be to do with different fuels here and the states (it looks like a american site).

[mmm-five]

balders118 said:

Hmm they have the puma with an avg mpg of 31mpg! I average 39 mpg, and that's a classic combined cycle - not long runs all the time. Although it does include some long motorway miles it also includes several hoons, and I'm generally not light footed! A massive difference, could it be to do with different fuels here and the states (it looks like a american site).

Could simply be due to the US gallon being smaller than a UK gallon.

[balders118]

mmm-five said:

Could simply be due to the US gallon being smaller than a UK gallon.

Ahh, I did not know this. Thanks.

[CraigyMc]

balders118 said:

mmm-five said:

Could simply be due to the US gallon being smaller than a UK gallon.

Ahh, I did not know this. Thanks.

Theres a link on the top left that says "units: US | UK | Metric". Click on the UK one.

[balders118]

CraigyMc said:

Theres a link on the top left that says "units: US | UK | Metric". Click on the UK one.

That's better

[ewenm]

The issue with "real world" mpg is that you have no idea how the driver submitting the reading drives. The manufacturer mpg figures may be fantasy in absolute real world terms but are valuable in that the test for each is consistent and so you can compare the relative results between cars.

I guess the "real world" sites give you an idea of roughly how fantastical the manufacturer claims are.

[pilchardthecat]

ewenm said:

The issue with "real world" mpg is that you have no idea how the driver submitting the reading drives. The manufacturer mpg figures may be fantasy in absolute real world terms but are valuable in that the test for each is consistent and so you can compare the relative results between cars.

Even that is flawed because (for example) the test revs the engine to a fixed proportion of the max revs - which is why low revving forced induction motors (given an advantage by this) never get close to their test mpgs, but NA motors often get better "real world" mpg than the test demonstrates

[Efbe]

pilchardthecat said:

ewenm said:

The issue with "real world" mpg is that you have no idea how the driver submitting the reading drives. The manufacturer mpg figures may be fantasy in absolute real world terms but are valuable in that the test for each is consistent and so you can compare the relative results between cars.

Even that is flawed because (for example) the test revs the engine to a fixed proportion of the max revs - which is why low revving forced induction motors (given an advantage by this) never get close to their test mpgs, but NA motors often get better "real world" mpg than the test demonstrates

statistically, if you have enough of a base to test from, as you will do with the more popular makes/models on www.fuelly.com etc, then the average will be accurate. You don't really need to know how it has been driven.
Yes if it is an Evo or Scooby then it will have been driven faster, but lets face it you probably will too, and if its an uninspiring-bland-box, then you will prob drive it with the contempt is deserves as well.

what you need to do is work out from fuelly what percentile your driving put you at, and you will have a good guide for the next car you go for. If you try this with manufacturers figures you will get fairy stories and politicians pledges.